Experience Ultimate Comfort: Bluetooth Headphones, Built-in Mic, Wirelessly Connect for Music, Sports, Soft Eye Mask, Perfect for Working Out or Sleeping

Wireless Bluetooth Music Headphones Knitted Headband, Sleep, Sports, Workout Jogging, Yoga etc. Features: 【1】Knitted material, fashion and keep warm when answering the phone in winter. 【 2 】Binaural stereo; Built-in mic, available for mobile phone to transmit the talking phone to your audio devices directly so that user can answer the phone hands-free through the device. Built-in rechargeable battery, charge via USB cable, long standby time. Products are certified by FCC, CE, ROHS, UN38.8, etc. The battery is certified by MSDS and Bluetooth has BQB certification. Specifications: Bluetooth Version: V5.0 Transmission distance: about 49 feet Li-ion Battery: 180mA Charging time: 2 hours Standby time: 48 hours Continuous working time: about 6-7 hours Size: suitable for head circumference 56-62cm the speakers can be removed so that you can wash the hat Quantity: 1pc Color: dark gray, gray, black Operation method: 1. In the off state, long press for 3 seconds to turn on; In the on state, lon