Wireless conversation-enhancing headphones help you hear in louder environments by bringing into focus the voices you want to hear and reducing the noises you don't Always-on active noise reduction Quiets your surroundings, while directional microphones in each earbud help you focus on the sounds in front of you or all around you Personalize your listening experience with settings such as bass and treble, world volume and microphone directivity within the Bose hear app. To take advantage of the conversation-enhancing benefits of Hearphones a Smart Phone is required. Soft stay hear+ tips stay secure and comfortable, and a lightweight neckband conforms to your body for all-day wear Up to 10 hours of battery life from a rechargeable lithium-ion battery. The headphones fully charge in less than 3 hours More