Features: [Earhook Style] Ergonomic ear hooks design fits your ears comfortable. When doing exercise, the earphones will hang on your ears firmly instead of falling. [Strong Battery] With 135mAh battery capacity, the earphones can last for approximate 8 hours for talking or playing. The earphones will be fully charged within only 2-3h. [Extended Compatibility] Q8 wireless BT earphone is compatible with all kinds of BT-enabled phones, tablets, and laptops. [Intelligent One Drag Two] The headset can connect two smart phones simultaneously. So you can seamlessly switch between your business phone and personal one. [Special Dual Battery Design] Dual battery 3.7v / 40mAh + 95mAh rechargeable lithium battery.