Upgrade USB rechargeable battery, built-in 100 mAh high-performance battery, recharge for about 2-2.5 hours, game time for more than 5 hours, will not be waked up at night, enough to support the whole night. If you fall asleep on power and the battery runs out, the Bluetooth eye mask will not beep to wake you up. You'll sleep well.
Size and speaker adjustable: size 20.3-26.5 inches, sleep mask can be adjusted according to the size of the head. To ensure a comfortable experience, and you can adjust the sound of the speaker to make your ears listen better.
Use the latest Bluetooth 4.2 technology to provide excellent sound quality. Bluetooth can easily match devices. could active Siri on ios device for commands.This is the best gift for family or friends, travel and airplanes.
Bluetooth eye mask is made from elastic cotton, and provide a soft and comfortable feeling. Fabric liner separated from stitching is not defective,it is the place to take out the bluetooth module, so you can full wash the eye mask.You don't have to worry about it shrinking and deforming
Bluetooth wireless stereo music eye mask ----- It can connect to the mobile phone which support Bluetooth or has Hands free Bluetooth protocol and other portable devices which support AVRCP. Before using stereo Bluetooth music eye mask to answer the calls, please first finish the pairing of Bluetooth eye.