Reddit mentions of Sennheiser HD1 In-Ear Wireless Headphones, Bluetooth 4.1 with Qualcomm Apt-X and AAC, NFC one touch pairing, 10 hour battery life, 1.5 hour fast USB charging, multi-connection to 2 devices

Edit, fixed typo.

The way bluetooth works is that you have to disconnect a device first in order to change devices. So what you're looking for is not standard bluetooth but multipoint, which means you'll have to spend more. This isn't in rose gold and it's $5 over your limit, but you can check out the Sennheiser HD1, if you want the version with the neckband it's a bit more expensive at 120. There are options under 100 without a neckband, but I don't use these so you'll have to search them up yourself.

I would recomend the Sennhisher Momentum HD1, its in Wireless Neckband or Wireless cable band, I recomend the Neck Band for more battery, Mic is good, and theres a vibration motor for phone calls and such, bit pricy but the battery life is good, sound quality excelent, and an overall good pair

https://www.amazon.com/Sennheiser-HD1-Headphones-Bluetooth-multi-connection/dp/B01MR84GHV/ref=sr_1_4?keywords=sennheiser+momentum+hd1&qid=1562926156&s=gateway&sr=8-4

Here's a few.

https://www.amazon.com/dp/B01MR84GHV/ref=cm_sw_r_other_apa_i_ODZqDb6MMKB3V

https://www.amazon.com/dp/B074QKGG72/ref=cm_sw_r_other_apa_i_mFZqDbVZZ2E5R

https://www.amazon.com/dp/B074QKN9YL/ref=cm_sw_r_other_apa_i_uFZqDbPYE6V38

There's more but I'm just too lazy to find em. I've personality used these and can recommend em.

Most of the true wireless ones last between 4-6 hours but recharge very quickly because of the small battery.

Two options you can look into:

• Sennheiser HD-1 ($200)
  
  
• Sony WI-1000X ($230)
  
  Both only get up to 10h of usage on one full charge, although the Sony in-ears can go a few hours longer when used without the noise-cancellation.
  
  I don't have any personal experience with either of these, so you can get more advice by asking for other people's experience/recommendations in /r/headphones's purchase help thread :)

Nexus phones all support aptX and that's a good thing :P

LDAC is a sony exclusive feature so far, it will be made available on android in the future.

The headphones are not great though, the Sennheiser HD1 In EAR Wireless costs the same and performs better, alternatively you could have a look at the Beyerdynamic Byron BTA Wireless

You could get some wireless like this, which would be a little difficult to lose

I would recommend Sony's MDR100ABN as your over-ear solution. It's a great mid price tier selection covering your bases on sound quality, mic, and durability. It's usually $300 USD but you can generally find them for cheaper now that MDR1000X has been out for a while. For your travel oriented selection I would recommend Sennheiser's HD-1. Great sound quality and build. The only issue I have had with it is that the audio cable protrudes from under the neckband so it may be slightly uncomfortable depending on your shoulder size.

https://www.amazon.com/Sennheiser-HD1-Headphones-Bluetooth-multi-connection/dp/B01MR84GHV you mean this one? I wanted the ones without cable

The second one, I guess I saw it around 10K.

Anyways at 13K, you'll get Sennheiser momentum in-ear wireless M2