Wireless Bluetooth Headset 1,Bluetooth version: V4.1 2,Operating distance: Up to 10m (free space) 3,Bluetooth profiles: A2DP, AVRCP, HSP, HFP 4,Talk/music playtime: Approximately 4.5 hours 5,Standby Time :180 hours 6,Charging time: Approximately 2 hours 7,Compatible for all Android & Apple and other Bluetooth devices Built-in rechargeable Li-ion battery Sweat-proof: Effectively prevent sweat and rain interfere with headset operation. Caller report, line control answer/hang up/rejection/on-off, redial, mute, volume adjustment, Chinese-English shifting, intelligent one-driving-two, music pause/play, up and down song switching Package Includes: 1 x Bluetooth 4.1 sports headset 1 x USB charging cable 1 x headphones package PVC box with paper insert 100 pcs / carton carton dimensions: 83x33x29cm 36400 pcs / 20' Container