Main Features:Support APT-X HiFi sound qualitySweat and splash proof can let you enjoy outdoors activitiesNFC quick paring, save your time and promote efficiencyCVC intelligent noise reduction to provide high quality musicMusic play time or call time about 6-8hours, enhance greatly the time of use

Main Features:Support APT-X HiFi sound qualitySweat and splash proof can let you enjoy outdoors activitiesNFC quick paring, save your time and promote efficiencyCVC intelligent noise reduction to provide high quality musicMusic play time or call time about 6-8hours, enhance greatly the time of useMobile phone can display bluetooth power( support ios system for now)Support multi-point connectionBluetooth version: V4.0Bluetooth protocol: HFP/HSP/A2DP/AVRCP/APT-X/CVCOutput power: 10mWWorkable distance: 10m (barrier-free space)Charging hours: 2hoursCharging voltage: DC 5VSensitivity: 90dB / - 3dBFrequency response: 20-20000HzStyle: Ear HookUse: Mobile phone,Portable Media Player,Sport  Package Contents:1 x Awei Bluetooth Earphone1 x User Manual  1 x USB Charging Cable