These headphones are GREAT FOR running, the gym, etc. Sweat & weather resistant. 5 hours of play time with an addition 10 hours with the charging case. The battery life is the same as when I purchased them. I just recently got a new pair for my birthday & I hope to find a great new home for my Bose Lemonade. My price is fair & $10 below the lowest market (used) value. From Bose website: Truly wireless sport headphones for total freedom of movement, packed full of technology that makes music sound clear and powerful. Charging time 2 hours Earbuds are sweat and weather resistant (with an IPX4 rating) Up to 5 hours of play time with each charge and an additional 10 hours with the included charging case Track lost earbuds with the Bose Connect App's “Find My Buds” feature SoundSport Free headphones have an integrated dual microphone array located on the right earbud to allow you to use them during calls when connected to a smartphone that supports Bluetooth. Call audio will only be heard in the right ear bud