Sleep Headphones Wireless, Bluetooth Sports Headband Headphones With Ultra-thin Hd Stereo Speakers Perfect For Sleeping,workout,jogging,yoga,insomnia

Bluetooth technical parameters: Product parameters 1. Wireless transmission distance 2. Binding capacity: 180 mah 3. Frequency range: 20-20 kHz 4. Sensitivity: 95DB 5. Blocking: 32 ohms 6. Speaker size: 32mm 7. Loading time: 2 hours 8. Continuous voice conversation time: 4-6 hours 9. Bluetooth music playing time: 3-6 h (volume status 70%) 10. Size: 22 * 6.5cm Package List: Bluetooth headset * 1 Manual * 1 Charging cable * 1