Features1High Bluetooth 5.2 Technology: Equipped with the latest Bluetooth V5.2 chip, ensuring stable connections, clear sound quality, and seamless wireless experience. Enjoy high fidelity stereo sound and impressive bass, with clear and stable communication. 2English Voice Prompts: Provides prompts for powering on, powering off, pairing success, low battery, and maximum volume. Fast and stable transmission with a non obstructive range of over 20 meters. 3For IOS Compatibility And Smart Assistance: Battery status is displayed on for iOS devices and can activate intelligent voice function. 4Comfortable Sleep Cover: Made from soft and lightweight fabric, sleep cover fits snugly on your face, providing a peaceful sleeping environment by effectively blocking out light. 5Multi Functional Headband: Combines Bluetooth headphones, sleep face cover, and hairband in one, making it convenient and versatile. Suitable for sleep, outdoor activities, and travel. 6Adjustable Elastic Design: Designed to accommodate different head sizes, ensuring a comfortable fit that stays in place without easily slipping off.SpecificationItem Type: Bluetooth HeadbandMaterial: PolyesterBattery Type: Lithium battery (built in)Battery Capacity: 300mAhPower Supply: USB interfaceTransmission Distance: Approx. 20m / 65.6ftSound Channel: StereoPackage List1 x Bluetooth Headband1 x Charging Cable1 x Manual