... sound with HD speaker and enhanced BASS effect.6. Best Wireless headphones Use for Gym,Working Out,Running,will not fall off ... time2hDistance≤10metersStandby time240hTalking times8h(80%)Music time8hoursPackingGift box packageCommunicationWirelessFunctionBluetooth,Microphone, Noise Cancelling, WaterproofSupport FunctionMusic,Conversation,Voice promptPackage contents:1 x BT-Q7 ...