(Part 2) Best products from r/OP1users
We found 20 comments on r/OP1users discussing the most recommended products. We ran sentiment analysis on each of these comments to determine how redditors feel about different products. We found 65 products and ranked them based on the amount of positive reactions they received. Here are the products ranked 21-40. You can also go back to the previous section.
21. Shop Fox W1322 Anti-Vibration Pad 24-Inch by 36-Inch, Black
- Neoprene Rubber; Black
- Measure 36 by 24 by 1/8-Inch
- Long lasting
Features:
▼ Read Reddit mentions22. Art Alternatives Sketch Box with Palette 6x12,Multi
Organize and store your art suppliesTake supplies with you when you travelHand sanded box made of elm hardwoodDurable finger-joint constructionMeasures 12.5 x 6.5 x 2.2 inches with a 5.5x11.5 palette
▼ Read Reddit mentions23. JAM Rewind Wireless Bluetooth Speaker, Portable, Dynamic Sound, Rechargeable Battery, Retro Design, Built-in Speakerphone, Works with iPhone, Android, Tablets, Cassette Design, HX-P540GY Grey
- 4-Speaker system for dynamic sound
- Rechargeable battery for up to 8 hours of playtime
- Bluetooth wireless functionality up to 30 feet, with speakerphone mode to switch from music to calls
- Perfectly portable: goes anywhere you go
- Voice prompts guide you through pairing and charging
Features:
▼ Read Reddit mentions
25. Neewer 50-In-1 Action Camera Accessory Kit Compatible with GoPro Hero 8 Max 7 6 5 4 Black GoPro 2018 Session Fusion Silver White Insta360 DJI AKASO APEMAN Campark SJCAM Action Camera etc
- Ultimate Compatibility: Compatible with most action cameras, including GoPro Hero10, 9, 8 , GoPro Max, GoPro Fusion, and its earlier models. Also suitable for DJI Osmo Action, Insta360, AKASO, APEMAN, Campark, SJCAM, etc
- Straps for Head, Chest & Helmet: Designed for all head sizes and body shapes, the straps secure the camera on your head and chest for taking breathtaking POV shots of surfing, skateboarding, parachuting, and bungy jumping. The helmet strap tightly fastens your camera on a helmet for road biking races, mountain bike trails, and BMX
- Wrist Strap & Floating Handle Grip: The wrist strap with a 360° rotatable mount is easily adaptable to fit your wrist and arm for taking shots from different angles. The floating handle grip keeps your camera afloat in the water when swimming or snorkeling
- Handlebar Mount & Suction Cup: Handlebar mount fits bars of 0.75”–1.4” (1.9–3.6cm) in diameter on your bike and motorbike and allows 180° tilt movement. Suction cup attaches your camera to the car for in-car footage
Features:
▼ Read Reddit mentions26. FiiO A3 Portable Headphone Amplifier (Black)
Suitable for headphones ranging from 16 to 150 Ohms. Gain switch for matching output to headphone power needs.Superior sound quality through expertly selected components and design, utilizing OPA1642 preamp and AD8397 amp section.Fully discrete bass boost circuit increases output by 3.5dB at 60Hz, w...
▼ Read Reddit mentions27. LEGO City Jungle 30355 ATV Car with Minifigure 2017 (Polybag) - Ages 4 Up
2017 POLYBAG EDITION - Get this LEGO set in the latest 2017 polybag packagingADORABLE MINIATURE FIGURES - Comes with mini ATV and human with a weaponLOOKS GOOD AS A DECOR OR A DISPLAY - Flaunt your LEGO obsession and use them as a display at home or at officeFOR AGES 4 AND UP - Recommended to be use...
▼ Read Reddit mentions28. JUST MIXER Audio Mixer - Battery/USB Powered Portable Pocket Audio Mixer w/ 3 Stereo Channels (3.5mm) Plus On/Off Switch
Versatile and Compact - The perfect way to mix multiple sound sources whenever and wherever you are (ideal for mixing audio/music from computers, smartphones, tablets, gaming consoles, Amazon Echo/Dot, mics and instruments)Stereo 3 in / 1 out Configuration - 3 stereo channels (3.5mm / 1/8") allows u...
▼ Read Reddit mentions29. Adjustable Nylon Spring Clamps 20-pieces 2 Inch Muslin Clamps for Photo Studio Backdrops Woodworking DIY Projects
- ★Included: 20 PC 2 inch clamps.2.8 inch x 1.8 inch,Maximum opening 1.6 inch mouth.
- ★Swivel pads at the ends:Soft durable pads to protect fine finishes.
- ★Used one-handed:you can easily put one or two spring clamps to work holding a stop block in position.
- ★Strong and reliable:Reinforced nylon construction for strength.
- ★Widely Used: For small arts & craft projects or using them to secure paper canvases for painting, blue printing, securing fabric or backdrops, woodworking, DIY, and more.
Features:
▼ Read Reddit mentions30. 100Pack Clear Round Self-Adhesive Rubber Pad Silicon Bumpers 3/8" for Home Kitchen Door Drawers Cabinet Furniture
- Size:3/8" diameter, 1/8" height.Pack of 100pieces.
- DGQ Soft round silicon bumpers greatly reduces noise
- Color:Clear,non-toxic silicone, safe for environment.
- Strong self-adhesive backing for easy peel-and-stick application.
- These clear bumpers can be applied to cabinets, furniture, electronics, computers, home theater equipment, desktops, etc.
Features:
▼ Read Reddit mentions31. 1MORE Dual Driver in-Ear Earphones Hi-Res Comfortable Headphones with Tangle-Free Cable, Noise Isolation, High Resolution, in-Line Control for Smartphones/PC/Tablet - Black
Dual drivers- upgraded state-of-the-art graphene driver + one balanced Armature deliver an extremely accurate listening experience with unsurpassed clarity from silky highs to deep bass.Aluminum alloy body- a lightweight aluminum alloy body with Kevlar core braided cable provide lasting durability a...
▼ Read Reddit mentions32. Photive Hydra Portable Bluetooth Speaker with Enhanced Bass. Waterproof Rugged Portable Speaker for Home, Travel and Outdoors
WATERPROOF PORTABLE BLUETOOTH SPEAKER- A rating of IPX66 means you can take this wireless speaker anywhere. Its Powerful sound and Rugged design makes it ideal for Travel. Take it Hiking, in the Shower or just us it to listen to music in your KitchenENJOY UP TO 8 HOURS UNINTERRUPTED SOUND - Advanced...
▼ Read Reddit mentions33. Bluetooth Speakers, Anker Soundcore Bluetooth Speaker with Loud Stereo Sound, 24-Hour Playtime, 66 ft Bluetooth Range, Built-in Mic. Perfect Portable Wireless Speaker for iPhone, Samsung and More
- ASTONISHING SOUND: Breathtaking stereo sound with deep bass is delivered with exceptional clarity and zero distortion by two high-sensitivity drivers and a patented bass port.
- 24H WORRY-FREE BATTERY LIFE: Anker's exclusive, long-life battery technology provides the Bluetooth speaker 24 hours of sublime music.
- WATERPROOF BUILD: IPX5-rated casing offers complete protection against liquids.
- EFFORTLESS CONNECTIVITY: Bluetooth 5.0 ensures instant pairing and maintains a strong connection up to 66 ft.
- BassUp TECHNOLOGY: The Bluetooth speaker has an in-house tuned digital signal processor analyzes the low frequencies to intensify the song’s bass in real-time.
- GRAB, GO, LISTEN: Lightweight, yet robust unibody design provides the perfect soundtrack for the park, yard, or anywhere else at home or away.
Features:
▼ Read Reddit mentions34. Hermitshell for Apple MC184LL/B Wireless Bluetooth Keyboard Hard EVA Travel Storage Carrying Case Cover Bag
- Hermitshell Hard Travel Storage Carrying Case.
- Protect your favorite device from bumps dents and scratches.
- Made to fit Apple MC184LL/B Wireless Bluetooth Keyboard.
- Material:EVA.Internal size:11.5*5.25*0.85 inches.
- For sale is case only (device and accessories are sold separately).
Features:
▼ Read Reddit mentions35. Behringer U-Control UCA202 Ultra-Low Latency 2 In/2 Out USB Audio Interface with Digital Output
- 2-channel USB Audio Interface with Optical Out
- 16-bit/48kHz
Features:
▼ Read Reddit mentions36. PAC SNI-135 Ground Loop Isolator
- IMPROVE AIR FLOW: The round SATA cable design helps improve air flow within your computer or server case for optimum system performance.
- PROVIDE SECURE CONNECTIONS: The latching SATA cable features locking connectors that help prevent accidental disconnections.
- FAST TRANSFER RATES: The cable supports fast data transfer rates of up to 6Gbps when used with SATA 3.0 compliant drives.
Features:
▼ Read Reddit mentions37. uxcell Telescopic 4 Section 3.5mm Male Stereo Connector FM Radio Antenna 25cm 2pcs
- Product Name : Telescopic Antenna;Sections : 4 Sections
- Unstretched Size : 8.3cm / 3.3";Full Length : 25cm / 10"
- Max Diameter : 4mm / 0.16";Connector Type : 3.5mmMale Stereo Connector
- Material : Metal, Plastic;Color : Silver Tone, Black
- Weight : 13g;Package Content : 2pcs x Telescopic Antenna
Features:
▼ Read Reddit mentions38. CeSunlight Reading Light, Book Light for Reading in Bed, Flexible Arm, Rechargeable, 4-Level Brightness Control, Perfect for Reading, Knitting, Camping, Repairing
- ♥ Powerful Rechargeable Lithium Battery. Its 700mAh battery takes only 3 hours to get fully charged and can last up to 6-8 hours with high brightness and 10 hours with normal brightness. Do not have to waste money on buying batteries.
- ♥ 4 LEDs Total & 4 Level Brightness. 2 Leds Each Arm, 1 Spotlight and 1 Wide Angle LED each side. 1st Click is Wide angle Light, 2nd Click is Spotlight, 3rd Click is Spot&Wide light, 4th Click off. Functions are the same for each arm. This booklight is ideal for poor eyesight.
- ♥ Flexible Arms. Steel alloy arms are flexible and strong. Arms are covered with soft Silicone, nontoxic, safe to use, and high-grade.
- ♥ Lightweight, Compact, Portable & Durable. With only 3-ounce weight, the bendable book light doesn't require much space and can fit easily into your carry-on suitcase, making it an ideal choice from all aspects.
- ♥ Worry-free 18-month warranty and friendly customer service.
Features:
▼ Read Reddit mentions39. LEGO City Mini Dump Truck Vehicle and Construction Worker Minifigure Toy Set 30348 (Bagged)
- University of Pennsylvania Press
Features:
▼ Read Reddit mentions40. Bose SoundLink Color Bluetooth Speaker (Black)
Clear, full-range sound you might not expect from a compact speakerVoice prompts make pairing your devices easier than everUp to 8 hours of music from rechargeable lithium-ion batteryWireless connection to your smartphone, tablet or other Bluetooth-enabled device
▼ Read Reddit mentionsTop comments mentioning products on r/OP1users:
Summary
21. Shop Fox W1322 Anti-Vibration Pad 24-Inch by 36-Inch, Black
- Neoprene Rubber; Black
- Measure 36 by 24 by 1/8-Inch
- Long lasting
Features:
▼ Read Reddit mentions22. Art Alternatives Sketch Box with Palette 6x12,Multi
Organize and store your art suppliesTake supplies with you when you travelHand sanded box made of elm hardwoodDurable finger-joint constructionMeasures 12.5 x 6.5 x 2.2 inches with a 5.5x11.5 palette
▼ Read Reddit mentions23. JAM Rewind Wireless Bluetooth Speaker, Portable, Dynamic Sound, Rechargeable Battery, Retro Design, Built-in Speakerphone, Works with iPhone, Android, Tablets, Cassette Design, HX-P540GY Grey
- 4-Speaker system for dynamic sound
- Rechargeable battery for up to 8 hours of playtime
- Bluetooth wireless functionality up to 30 feet, with speakerphone mode to switch from music to calls
- Perfectly portable: goes anywhere you go
- Voice prompts guide you through pairing and charging
Features:
▼ Read Reddit mentions25. Neewer 50-In-1 Action Camera Accessory Kit Compatible with GoPro Hero 8 Max 7 6 5 4 Black GoPro 2018 Session Fusion Silver White Insta360 DJI AKASO APEMAN Campark SJCAM Action Camera etc
- Ultimate Compatibility: Compatible with most action cameras, including GoPro Hero10, 9, 8 , GoPro Max, GoPro Fusion, and its earlier models. Also suitable for DJI Osmo Action, Insta360, AKASO, APEMAN, Campark, SJCAM, etc
- Straps for Head, Chest & Helmet: Designed for all head sizes and body shapes, the straps secure the camera on your head and chest for taking breathtaking POV shots of surfing, skateboarding, parachuting, and bungy jumping. The helmet strap tightly fastens your camera on a helmet for road biking races, mountain bike trails, and BMX
- Wrist Strap & Floating Handle Grip: The wrist strap with a 360° rotatable mount is easily adaptable to fit your wrist and arm for taking shots from different angles. The floating handle grip keeps your camera afloat in the water when swimming or snorkeling
- Handlebar Mount & Suction Cup: Handlebar mount fits bars of 0.75”–1.4” (1.9–3.6cm) in diameter on your bike and motorbike and allows 180° tilt movement. Suction cup attaches your camera to the car for in-car footage
Features:
▼ Read Reddit mentions26. FiiO A3 Portable Headphone Amplifier (Black)
Suitable for headphones ranging from 16 to 150 Ohms. Gain switch for matching output to headphone power needs.Superior sound quality through expertly selected components and design, utilizing OPA1642 preamp and AD8397 amp section.Fully discrete bass boost circuit increases output by 3.5dB at 60Hz, w...
▼ Read Reddit mentions27. LEGO City Jungle 30355 ATV Car with Minifigure 2017 (Polybag) - Ages 4 Up
2017 POLYBAG EDITION - Get this LEGO set in the latest 2017 polybag packagingADORABLE MINIATURE FIGURES - Comes with mini ATV and human with a weaponLOOKS GOOD AS A DECOR OR A DISPLAY - Flaunt your LEGO obsession and use them as a display at home or at officeFOR AGES 4 AND UP - Recommended to be use...
▼ Read Reddit mentions28. JUST MIXER Audio Mixer - Battery/USB Powered Portable Pocket Audio Mixer w/ 3 Stereo Channels (3.5mm) Plus On/Off Switch
Versatile and Compact - The perfect way to mix multiple sound sources whenever and wherever you are (ideal for mixing audio/music from computers, smartphones, tablets, gaming consoles, Amazon Echo/Dot, mics and instruments)Stereo 3 in / 1 out Configuration - 3 stereo channels (3.5mm / 1/8") allows u...
▼ Read Reddit mentions29. Adjustable Nylon Spring Clamps 20-pieces 2 Inch Muslin Clamps for Photo Studio Backdrops Woodworking DIY Projects
- ★Included: 20 PC 2 inch clamps.2.8 inch x 1.8 inch,Maximum opening 1.6 inch mouth.
- ★Swivel pads at the ends:Soft durable pads to protect fine finishes.
- ★Used one-handed:you can easily put one or two spring clamps to work holding a stop block in position.
- ★Strong and reliable:Reinforced nylon construction for strength.
- ★Widely Used: For small arts & craft projects or using them to secure paper canvases for painting, blue printing, securing fabric or backdrops, woodworking, DIY, and more.
Features:
▼ Read Reddit mentions30. 100Pack Clear Round Self-Adhesive Rubber Pad Silicon Bumpers 3/8" for Home Kitchen Door Drawers Cabinet Furniture
- Size:3/8" diameter, 1/8" height.Pack of 100pieces.
- DGQ Soft round silicon bumpers greatly reduces noise
- Color:Clear,non-toxic silicone, safe for environment.
- Strong self-adhesive backing for easy peel-and-stick application.
- These clear bumpers can be applied to cabinets, furniture, electronics, computers, home theater equipment, desktops, etc.
Features:
▼ Read Reddit mentions31. 1MORE Dual Driver in-Ear Earphones Hi-Res Comfortable Headphones with Tangle-Free Cable, Noise Isolation, High Resolution, in-Line Control for Smartphones/PC/Tablet - Black
Dual drivers- upgraded state-of-the-art graphene driver + one balanced Armature deliver an extremely accurate listening experience with unsurpassed clarity from silky highs to deep bass.Aluminum alloy body- a lightweight aluminum alloy body with Kevlar core braided cable provide lasting durability a...
▼ Read Reddit mentions32. Photive Hydra Portable Bluetooth Speaker with Enhanced Bass. Waterproof Rugged Portable Speaker for Home, Travel and Outdoors
WATERPROOF PORTABLE BLUETOOTH SPEAKER- A rating of IPX66 means you can take this wireless speaker anywhere. Its Powerful sound and Rugged design makes it ideal for Travel. Take it Hiking, in the Shower or just us it to listen to music in your KitchenENJOY UP TO 8 HOURS UNINTERRUPTED SOUND - Advanced...
▼ Read Reddit mentions33. Bluetooth Speakers, Anker Soundcore Bluetooth Speaker with Loud Stereo Sound, 24-Hour Playtime, 66 ft Bluetooth Range, Built-in Mic. Perfect Portable Wireless Speaker for iPhone, Samsung and More
- ASTONISHING SOUND: Breathtaking stereo sound with deep bass is delivered with exceptional clarity and zero distortion by two high-sensitivity drivers and a patented bass port.
- 24H WORRY-FREE BATTERY LIFE: Anker's exclusive, long-life battery technology provides the Bluetooth speaker 24 hours of sublime music.
- WATERPROOF BUILD: IPX5-rated casing offers complete protection against liquids.
- EFFORTLESS CONNECTIVITY: Bluetooth 5.0 ensures instant pairing and maintains a strong connection up to 66 ft.
- BassUp TECHNOLOGY: The Bluetooth speaker has an in-house tuned digital signal processor analyzes the low frequencies to intensify the song’s bass in real-time.
- GRAB, GO, LISTEN: Lightweight, yet robust unibody design provides the perfect soundtrack for the park, yard, or anywhere else at home or away.
Features:
▼ Read Reddit mentions34. Hermitshell for Apple MC184LL/B Wireless Bluetooth Keyboard Hard EVA Travel Storage Carrying Case Cover Bag
- Hermitshell Hard Travel Storage Carrying Case.
- Protect your favorite device from bumps dents and scratches.
- Made to fit Apple MC184LL/B Wireless Bluetooth Keyboard.
- Material:EVA.Internal size:11.5*5.25*0.85 inches.
- For sale is case only (device and accessories are sold separately).
Features:
▼ Read Reddit mentions35. Behringer U-Control UCA202 Ultra-Low Latency 2 In/2 Out USB Audio Interface with Digital Output
- 2-channel USB Audio Interface with Optical Out
- 16-bit/48kHz
Features:
▼ Read Reddit mentions36. PAC SNI-135 Ground Loop Isolator
- IMPROVE AIR FLOW: The round SATA cable design helps improve air flow within your computer or server case for optimum system performance.
- PROVIDE SECURE CONNECTIONS: The latching SATA cable features locking connectors that help prevent accidental disconnections.
- FAST TRANSFER RATES: The cable supports fast data transfer rates of up to 6Gbps when used with SATA 3.0 compliant drives.
Features:
▼ Read Reddit mentions37. uxcell Telescopic 4 Section 3.5mm Male Stereo Connector FM Radio Antenna 25cm 2pcs
- Product Name : Telescopic Antenna;Sections : 4 Sections
- Unstretched Size : 8.3cm / 3.3";Full Length : 25cm / 10"
- Max Diameter : 4mm / 0.16";Connector Type : 3.5mmMale Stereo Connector
- Material : Metal, Plastic;Color : Silver Tone, Black
- Weight : 13g;Package Content : 2pcs x Telescopic Antenna
Features:
▼ Read Reddit mentions38. CeSunlight Reading Light, Book Light for Reading in Bed, Flexible Arm, Rechargeable, 4-Level Brightness Control, Perfect for Reading, Knitting, Camping, Repairing
- ♥ Powerful Rechargeable Lithium Battery. Its 700mAh battery takes only 3 hours to get fully charged and can last up to 6-8 hours with high brightness and 10 hours with normal brightness. Do not have to waste money on buying batteries.
- ♥ 4 LEDs Total & 4 Level Brightness. 2 Leds Each Arm, 1 Spotlight and 1 Wide Angle LED each side. 1st Click is Wide angle Light, 2nd Click is Spotlight, 3rd Click is Spot&Wide light, 4th Click off. Functions are the same for each arm. This booklight is ideal for poor eyesight.
- ♥ Flexible Arms. Steel alloy arms are flexible and strong. Arms are covered with soft Silicone, nontoxic, safe to use, and high-grade.
- ♥ Lightweight, Compact, Portable & Durable. With only 3-ounce weight, the bendable book light doesn't require much space and can fit easily into your carry-on suitcase, making it an ideal choice from all aspects.
- ♥ Worry-free 18-month warranty and friendly customer service.
Features:
▼ Read Reddit mentions39. LEGO City Mini Dump Truck Vehicle and Construction Worker Minifigure Toy Set 30348 (Bagged)
- University of Pennsylvania Press
Features:
▼ Read Reddit mentions40. Bose SoundLink Color Bluetooth Speaker (Black)
Clear, full-range sound you might not expect from a compact speakerVoice prompts make pairing your devices easier than everUp to 8 hours of music from rechargeable lithium-ion batteryWireless connection to your smartphone, tablet or other Bluetooth-enabled device
▼ Read Reddit mentions
Sure thing:
Hope this is helpful.
I have a couple of suggestions that i think would work great as they are both durable and cheap:
this JAM rewind is literally the size of two iphones 5 stacked, the quality is surprisingly good for its price range.
And this JBL flip 3 , the size on this is like a bottle, it fits in most backpack's side pocket
PS: you will need a jack cable for both of these as its not included
The knobby ones fit almost perfectly...I used some teflon tape aroung the knobs to make them more snug.
The smaller slicks have to be stretched to fit on the knobs, but they offer excellent grip. Same goes for the standard LEGO City tires (they can be stacked 2 high on the knobs though, they're not as wide as these slicks).
Neewer 50-In-1 Accessory Kit for GoPro Hero 7 6 5 4 3+ 3 2 1 Hero Session 5 Black AKASO EK7000 Apeman SJ4000 5000 6000 DBPOWER AKASO https://www.amazon.co.uk/dp/B01171X0UW/ref=cm_sw_r_cp_apa_i_AY4DDbBZMJ6SF
I picked this up and it works great! Just remember when you amp your output, you'll amp the noise from the OP-1 as well. The OP-1 has a fairly high noise floor. Noticed that when using it as output to a larger speaker for a quick mix. Fortunately, you usually use the amp for headphones so only you hear the noise when using it.
https://www.amazon.com/A3-Portable-Headphone-Amplifier-Black/dp/B00Z9BIODA/ref=sr_1_14?ie=UTF8&qid=1525201388&sr=8-14&keywords=headphone+amp
I'm not 100% sure on those. That said, this kit has the 56890 ones from the link above (it's what I bought) and they fit perfectly: https://www.amazon.com/LEGO-Jungle-30355-Minifigure-Polybag/dp/B01MR8226Y
This is it: JUST MIXER Audio/DJ Mixer - Battery/USB Powered Portable Pocket Audio Mixer w/ 3 Stereo Channels (3.5mm) Plus On/Off Switch https://www.amazon.com/dp/B01LPT8KQA/ref=cm_sw_r_cp_apa_z-meAbZ31R06W
It does need a battery. There are similar products related on Amazon. It's a great thing for mixing on the go.
A stack of coins, a cool rock you've found, painter's tape, a non-toxic fishing weight, tiny clamps, a calibration weight, or just have a friend hold it down.
https://www.amazon.com/dp/B0787L5XH6/ref=cm_sw_r_cp_api_i_ageHDbM2YAEZ1
I haven’t gotten my op-1 yet, but I use these on Ableton. They are earbuds but they really do sound good for $30.
I have this.
https://www.amazon.com/gp/aw/d/B01CNM3TM8/ref=ppx_yo_mob_b_track_package_o1_img?ie=UTF8&psc=1
Fits perfectly
I recommend the behringer uca202 (the uca222 is the same in red) if you only want to use it for simple monitoring/recording/listen with headphones. the sound quality you get good and you don't get anything better for this price.
https://www.amazon.com/Behringer-UCA202-BEHRINGER-U-CONTROL/dp/B000KW2YEI
you can use this cable for stereo input https://www.amazon.com/Generic-F8V235-12-3-5mm-cable-12-Feet/dp/B000067RBT
is there a mic/line option on your interface? maybe it's set to the wrong one... how much input gain do you have dialed on the interface? perhaps it's up too high. those are my thoughts.. i also use a cheap noise isolator from amazon, and it's working perfect over here.
I picked up another identical looking aerial to the TE one and it didn't work, then I grabbed a couple of these and they're perfect:
https://www.amazon.co.uk/gp/product/B00W8Z38WM/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1
You can also use a minijack cable, but it's nice to have the aerial.
I got the TE case, it's expensive but worth it to protect the OP-1 - unlike the PO cases which utterly f%£@!d my PO-12.
do they fit on the same axle size as these? I'm in a bit of a remote location and it would be cheaper for me to buy them on amazon
https://www.amazon.com/LEGO-Vehicle-Construction-Minifigure-30348/dp/B01BH9BAKQ/ref=sr_1_19?ie=UTF8&qid=1526895439&sr=8-19&keywords=lego+city+construction
I use a little BOSE Soundlink, which sounds great. The battery life was fantastic when I first got it, but now after a few years it's definitely gotten worse. It still runs for a few hours, which is all I really need.