Professional Manufacturer: Our products often are recognized as the premium and technologicalsound sleep devices, as they can really solve the annoying problems brought by Insomnia,anxiety and missing important phone calls. We should have a good sleep. If wedon't have a good sleep we may get ill. Of course sleeping enough is also importantfor your body. Most people are sensitive to light when sleeping, andour Bluetooth eye mask can effectively block external light and create apeaceful rest environment. Listening to your favourite music while sleeping canalso relax people's physical and mental state.    If you have the habit of taking a nap, thenthis eye mask is absolutely indispensable for you. Features: The sleep mask is crafted with cool fabric, no sultrywill be felt even in summer. The versatile Bluetooth 3D eye mask is super suitablefor many occasions, like home, travel, work, yoga, meditation, plane, train, orany place need close your eyes and have a rest. If you have insomnia, the sleepBluetooth will become a cure. We alwaysprioritize a sound sleep that is closely connected to your health. If youreally care the physical condition of you and your family, choose the cool tech gadgets is absolutelythe perfect choice. In the process ofcrafting, we strictly control every detail, adjustable mask bottom helps to block light coming from the nose area.   The Bluetooth sleep headphone is featured with the excellentstereo sound quality. Before wearing our Bluetooth sleep headphone, you have tomove the position of the speakers to fit your ears.  Packageincludes: Bluetooth Sleep Headphones*1 Waterproof bag*1 Manual*1 Data Cable*1 Specification: Colour: Black Charging voltage:3.7V -4.2V Charging current:15