Key Features: True wireless freedom Secure hook earpiece and lightweight, comfortable-fit earphones that sit on top of your ear (Not in the ear canal) Allows ambient sound to be heard around you Battery: Headphones: 9.5 hours + Additional 28.5 hours battery life with charging case = Total 38 hours Quick 10 mins charge = 70 minutes of playback Slimline compact charging case High-quality hands-free call with multiple microphones and noise reduction features for calling Multipoint Bluetooth connection allows you to connect with multiple devices at the same time Single ear use