Winkeyes Bluetooth Beanie Hat Knitted Musical Hat Headphone Speaker Hands Free Women Girls Winter Beanie for Exercise Gym Sports Running Skiing Christmas Gift V3.0+EDR Bluetooth version, available for all devices with Bluethooth function Knitted material, fashion and keep warm with answer the phone in winter Set-in MIC, available for cell phone to transmit the spesking phone to your audio devices Set-in Li-ion chargeable battery, charge via USB Cable, long stand-by- time Support power display on iPhone Package includes bluetooth music hat, charging cable, and instruction manual