In-ear design can improve the low bass effect a lot, the special auxiliary small hook will keep the Bluetooth earbuds in your ear very firm and comfortable, this is very good for life time movement and sports time. Touch life is coming already, upgraded touch control earbuds, you can finish all actions via slight touch on the your Bluetooth headphones, such as power on, paring, answer the call, play, pause, prev, next etc. As portable as a lipstick, magnetic inductive charing - Never Have to fiddle with cords, you put it to charge and pick it up when you are ready to go. Bluetooth V4.2 assures quick and stable connectivity with variety device, and it's features by low consumption and balanced performance in treble and bass. Built-in super mini HD Microphone, so your Bluetooth earphone is not only for music, but also can answer the call without picking up your mobile phone, it release your hands to do something else. Touch Control HD TWS Bluetooth Earphones Twins Description Why Choose TWS Bluetooth Earphones 1. Unique aluminium alloy rotatable charging case 2. Touch Control Bluetooth earbuds 3. Sweat-proof In-ear Dual ear earbuds 4. HD Stereo heavy low bass effect. TWS Bluetooth Earphones Function: Play music, Answer the call, Incoming call number broadcast, dial back Play/Pause/Next/Prev Specification: Bluetooth version: V4.2 Earbud battery(single): 55mAh Charging case battery: 400mAh Talking time: 2.5 hours Music time: 2.5 hours Charging time: 1-2 hours Charging times: 2-3 times Bluetooth Earbud G.W.(single): 5g