Key Features: Compact, Lightweight, and Comfortable for daily usage. Long Battery life of up to 22 Hours (11Hrs Earbuds + 11Hrs carrying case) with a Quick Charge of 5 Min=60Mins Playback. Multipoint Connection allows you to pair it with two devices simultaneously. IPX4 rating-Sweat Proof and Splash Proof. Ambient Sound Mode keeps you aware of the surroundings. Supports one earbud use. DSEE restores high-frequency sound.