Features: The Bluetooth headband keeps your head warm while allowing you to listen to music without additional headphones. It helps protect against hair and sweat interference, and the built-in microphone enables hands-free calling. Made from acrylic fiber, the headband is soft, comfortable, washable, and breathable. Equipped with a built-in 200mAh high-performance battery, it can be charged via USB cable. Designed to provide warmth, this Bluetooth headband allows you to listen to music, take calls, and keep your head and ears warm in cold weather. The speakers can be removed for washing. Helps absorb sweat to prevent it from reaching your eyes. Ideal for enjoying music during sports and outdoor activities. Suitable for various gifting occasions such as ceremonies, employee rewards, anniversaries, trade shows, promotions, festivals, housewarmings, weddings, birthdays, and business gifts. Product specifications: Color: Black, Dark Gray, Grey, Red Material: Acrylic fiber Bluetooth version: V5.0 + EDR Indicator: Red light indicates charging Transmission distance: 10 meters Frequency response: 20Hz – 20kHz USB: Micro USB Power supply: 180mAh lithium rechargeable battery Suitable for: Men and women Charging time: 2 hours Continuous usage time: Up to 7 hours Package includes: 1 x Bluetooth headband