Bluetooth Sleeping Headphones Sports Headband Thin Soft Elastic Comfortable Wireless Music Earphones Eye Mask For Side Sleeper 3D Features: 1.Wireless Connect function: support Wireless calls and Wireless music, low-loss and high-quality stereo sound, efficient sleep aid, so that you can sleep without interference. 2.Effectively assist sleep, help you improve insomnia and poor sleep quality caused by too much light, stress, noise interference. 3.The sleep mask made of milk silk and high-quality cotton is light, soft, skin-friendly and breathable, with good shading and comfortable wearing. 4.The foldable design is easy to store and carry, so you can sleep and relax comfortably anytime, anywhere. 5.The 3D three-dimensional design allows the eye mask to fully fit the facial contour, preventing light from entering and affecting sleep. Specifications: Material: Milk silk + cotton Color: black Size: 45cm long, about 12cm at the widest point, about 1.5cm at the thickest point of the eye mask Packing size: 16.5*12.5*6cm Built-in polymer lithium battery: 200MAH Charging time: 2 hours Use time: 8-10 hours Wireless music time: 10 hours (volume below 50%) Wireless operating range: 10 meters Packing List: 1* Eye mask 1* USB Charging Cable 1* English User Manual