The headband is made of strong woven thread and provided with a breathable mesh lining, which can be easily stretched to fit all head sizes. Useful for wearing an eye mask for sleeping so the light-blocking feature is helpful. Multifunctional Bluetooth head-mounted sleep headphones. Bluetooth 5.0: 0.25 inches speaker comes with high-definition HIFI excellent sound quality, and it is very comfortable for sleepers. Charging for about 2-2.5 hours can provide more than 10 hours of playing time. Bluetooth headband brings you a good night sleeping. The earphone is very suitable for use in the gym, exercise, running, yoga, and other outdoor activities. It features Bluetooth technology to produce great sound quality, and it can pair with most Bluetooth devices, including Smartphones and Tablets. Compatible with all Bluetooth devices. It is a gift for family or friends on travel and airplane at Festivals.

Features:

• Bluetooth 5.0 chip, can be connected to your mobile phone to enjoy the music.
• Elastic band and hook & loop fasteners, fit most people.
• Built-in microphone for your to answer the phone call.
• Comfortable velvet material, more breathable.

Specification:

• Music playback time: maximum sound 7H, medium volume 10 hours
• Bluetooth transmission distance: 10 meters
  
• Audio output signal-to-noise ratio: 93dB
• Size: about 27cm*10cm/10.63*3.94inch
• Frequency range: 2.4-2.4835GHz
• Maximum input current: 150mah
• Headphone channel: stereo (2.0)
• Maximum input voltage: DC 5V
  
• Maximum input power: 0.55W
• Microphone distance: 1 meter
  
• Speaker impedance: 32 ohms
• Bluetooth standby time: 72H
• Audio output distortion: 0.6%
• Charging time: 1-2 hours
• Battery capacity: 150ma/h
• Transmitting power: 6dB
  
• Battery power: 0.55W
• Speaker power: 0.02W
  
• Sensitivity: 45db

• 1*Bluetooth Headset
• 1*Instruction
  
• 4~13 days
• 1*Cable