【Stereo speaker& Bluetooth 5.2】Sleep Deeply Anywhere, Anytime. Insomnia will be in your past. True HD high fidelity sound featuring latest Bluetooth 5.0 technology that produces great sound quality. Block light to make your sleep better, allows you to listen to music without wearing additional headphones, which make you fall asleep faster 【Wireless Sleep Eye Mask】It connects to any Bluetooth capable device.It also can connect TV which have Bluetooth.But It can't connect to 2 Bluetooth at the same time, If you want to connect the second device, disconnect the first device. 【Chargeable Battery and Adjustable】Built-in 200mAh high-performance battery, Charge via USB Cable. Charge about 2-2.5 hours provide more than 8 hours playing time. No"battery low" to wake you up.you can adjust the position of the speakers to near ears to hear more clearly. Connect the Bluetooth, comfortable sleep anywhere -air travel, relaxation, meditation, insomnia. 【Comfortable Material and Washable】Music Bluetooth eye shade is made from 5% Polyester and 95% 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.Velcro is adjustable.