Features: 1.Knitted material, fashion and keep warm with answer the phone in winter. 2. Set in MIC, available for cell phone to transmit the speaking phone to your audio devices directly so that the user can hand free answering phone up via the device. 3. Bulit in Liion chargeable battery, charge via USB Cable, long stand by time. specification:Play time: 6-7 hours Standby time: 48 hours Battery capacity: 180mA Charging time: 2 hours Effective Signal Acceptance Range: 10m Bluetooth Version: V4.2 + EDR Sound channel: stereo Functions: power display, call function, support music play Size: Fit for head circumference between about 56-62 cm Speaker is removable, so you can clean the headband when in need PackageList:1X Bluetooth Music Headband 1 x Charging Cable 1 x Manual NoteDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!