Welcome to our store! We present our multifunctional Bluetooth-mounted sleep headphones. With these three-in-one sleep headphones, you can listen to music without wearing extra headphones, while also protecting yourself from hair and sweat. The headband is super soft and breathable, made of heavy-duty braided wire with a breathable mesh lining. It can be easily stretched to fit all head sizes and provides excellent softness and hypoallergenic properties. Equipped with Bluetooth 5.0 technology, these headphones have a speaker thickness of only 0.25 inches, providing high-definition HiFi sound quality that is comfortable for those who sleep. The wide use of these headphones makes them perfect for use at the gym, during workouts, running, yoga, and other outdoor activities. You can also wear an eye mask to fall asleep, making the shading function very useful. With a longer playtime, a charge of only 2-2.5 hours can provide over 10 hours of music playback. These Bluetooth headbands ensure a good night's sleep. Bluetooth version: 5.0 Bluetooth protocol: AGHSP Bluetooth solution: Lanxun Bluetooth transmission distance: 10 meters Headphone channel: Stereo (2.0) Music playback time: Maximum volume 7H, medium volume 10 hours Microphone distance: 1 meter Bluetooth standby time: 72H Battery capacity: 180ma/h Battery power: 0.55W Speaker impedance: 32 ohms Speaker power: 0.02W Frequency range: 2.4-2.4835GHz Sensitivity: 45db Transmit power: 6dB Audio output distortion: 0.6% Audio output signal-to-noise ratio: 93dB Charging time: 1-2 hours Maximum input voltage: DC 5V Maximum input current: 180 mah Maximum input power: 0.55W Function: HD call function, mobile phone battery display, listen to music Product weight: 80g Product size: 27cm*10cm/10.62inch*3.93inch(Approx) Package includes: - 1 x Bluetooth headset - 1 x Cable - 1 x User manual 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the item, such as damage and incorrect quantity of goods, please contact the seller immediately. We will do our best to provide you with satisfactory customer service.