True wireless means No Wires - and no limitswhen wearing these light, comfortable earbuds True Wireless Freedom Listen to your favorite tunes on the go hassle-free with these Bluetooth® totally wireless earbud style headphones. Noise isolatling technology reduces background noise for a richer audio experience. Pair them with your Bluetooth® smartphone or tablet easily. Designed to be sweat resistant so you can use them while exercising too. Konf TW™ features Charging case which continuously charges the earbuds when not in use. The case is also a power bank so you can charge your phone if the battery runs low. Noise isolation helps reduce distracting background noise. Completely wireless for freedom of movement. Voice time up to 2.5 hours on a single charge. Music playback time of up to 4 hours. Standby time of up to 150 hours. Pairs with your Bluetooth® devices, such as tablets and smartphones. Multipoint means it can pair with up to 2 devices. You can answer calls and hang up using the earbuds. Voice control to call out. Voice broadcast Caller ID. High quality MEMS mic for clear calls. Sweat resistant, use them during exercise workout.