Description:
The mask is made of soft and comfortable material, can let you slowly enter the sleeping state with music, can also reduce the interference of external noise, provide a sleep environment quiet, whether it's work break or sleep at night.

Features:
Version 5.0 Bluetooth technology to pair your phones or smart tablets
USB chargeable and fully charge for 2 hours to provide play time up to 5-10 hours
Block the lights to make you sleep better and allows you listen to the music without additional headphones.
Extra cushion makes the mask and nose touch better�br> Detachable and washable
Connect your phone and listen to music to relax while sleeping.

Specification:
Material: polyester cotton
Size: approx.41x11cm
SNR: 90dB
Bluetooth protocol: V5.0
Operating distance: 10M
Battery capacity: 200mAh lithium battery
Charging voltage: 3.7-4.2V
Charging current: 150-200mA
Frequency range: 20HZ-20KHZ
Charging time: 2hrs
Using time: 10hrs

Package Contents: 1 X Bluetooth Sleep Eye Mask