1、SUITABLE FOR SLEEPING WITH PROBLEMS With 3D ergonomic technology for the eye area and blocks light, creates an absolutely dark area, listen to music without wearing additional headphones, gives you a deep sleep for problems with sleep. For home, office, travel, business trips, relaxation, meditation and insomnia.; 2、BLUETOOTH 0 STEREO Bluetooth 0 technology, stable connection, high-speed long-distance transmission, low power consumption, providing an excellent stereo experience. Built-in adjustable high-quality speaker and microphone for hands-free and clear calls.; 3、MEMORY FOAM Bluetooth sleep mask is designed with breathable materials and a comfortable hand feel, breathable slow rebound memory foam allows you to release the pressure on your face and help you fall asleep quickly. Center-positioned Bluetooth control, perfect for side sleepers.; 4、PERFECT LIGHT BLOCKING 3D eye mask for sleep with wing design, the extra cushioning pad makes the contact between the eye mask and the nose better and can completely block the light. Best for frequent flyers who sleep on long flights or sensitive sleepers (insomnia) who dislike bright light.; 5、GOOD BATTERY AND WASHABLE Built-in 200mAh Li-ion battery (included), charging for about 2H, providing more than 10H of playtime, you will not wake up at night. The sleep mask is washable (warm water is recommended), remove the Bluetooth module and cord. r nWhen you buy our products, you not only get high quality, but also the benefit of our thoughtful customer service. Our customer service team is always ready to provide you with help and support._PA