Bluetooth Headphones,Coolcat Music Bluetooth Wireless Sports Gym Excercises Sweatproof Earbuds Noise Cancelling In-ear Headsets With replaceable battery With Mic for Smartphones Devices(Red&Black)

Functionally these are amazing. Great design concept, to be clear, it comes with two left ear piece's with the battery inside, and one right ear piece, with the controls. I found range in line of sight to be over 100 feet, volume goes quite loudly too. Controls all work. I have not tried using in a phone call. I can also accurately report the negative. The audio quality is not very good. Plenty of mid and bass, but trebel is very missing. This leaves vocals and high pitch audio suffering. Overall the sound is muffled and dull. I do not recommend these to audio enthusiasts.

I Like the fact that you have two batteries included. If you battery runs low, just swap it out. So remember to keep both charged up. Not as comfortable as I had hoped, but after wearing them for a while, no big deal.

Ended up returning these, did not fit in my ears well, and the control awkwardly flopped around my head and shoulders while working out

Horrible. Horrible. Horrible. I didn't even use it more than a few times and the wires detached from the battery case.

My ears have a regular size and this is very unconfortable for me. Really small, also the Bluetooth works only in a distance of 10 inches

These are perfect for long days on a tractor. Comfortable, great sound & 2 batteries when you're out there from dawn to dark.

Terrible headphones. The battery sits off center of the wire which means it will pull down on one side. Causing that side ear piece to fall out. The metal clips don't adjust and if you try you will end up bending them. Sound it just ok. I would give them a negative star if I could

This didn’t last a month. We returned them and were only refunded $2.48 for the protection plan. I will never buy these again.