Update 07/2021 - now battery life has shrunk to about 70min at medium volume when streaming via Bluetooth. Contacted support about installing a new battery and don't speak much English so it was a waste of time - back and forth emails of 'lost in translation'.I *would not* purchase this product again - there are a few other neckphone options out there.=====================Update 05/2021 - battery life has substantially declined now, I'm lucky if I get 3 hours of audio when streaming via Bluetooth at medium volume.Very disappointed this product only performed well for about one year. I would not purchase again.---------------------This is a fantastic product allowing awareness of surroundings while still listening to audio. The shape fits around the neck and on the shoulders quite well, however I had to tie a string to the housing in two places and place a squeeze clip for adjusting tension in order to keep the neckband from turning and/or falling off when doing certain movements. See picture included.All the buttons work well and there is a sufficient volume level at max without too much distortion. The Bluetooth connection range seems to be a little above the average 10m (30feet), at about 45 feet with direct line of sight.,The only drawback I'm experiencing is the weakening of the battery over time. I charged them fully with first use, then have allowed them to drain and turn off while using before charging again. Initially I got about 10 hours of use with a charge, but after many months am now only getting 4-5 hours before the battery dies. That's still sufficient for many daily podcasts.Quality of sound/use for:*news/spoken word/podcasts - excellent*music - average*phone/mobile device calls - average to a little less than average