Feature: 1. APPLICABLE SCENARIO: Bluetooth sleep headphones can listen to music during sleep without the need to wear extra headphones, helping you sleep better and protecting you from outside noise. Suitable for family, travel, yoga, train. With Bluetooth technology and high definition sound quality, can be easily paired with smartphones, computers and most other Bluetooth compatible devices 2. 3D MODELING: The eye mask is designed with curved cartilage and can be adjusted to effectively block light from your nose and help you fall asleep quickly. The ergonomically designed Bluetooth sleep headphone have a wider and deeper eye space than traditional sleep masks, without putting pressure on the eyes and face, and without rubbing the eyelids 3. COMFORTABLE AND NOT TIGHT: 3D sleep eye mask perfectly solve the problem of tight silk eye mask. With an adjustable band that won't knot your hair 4. CHARGING AND PLAYBACK TIME: The eye mask sleep earbud support 2‑2.5 hours of fast charging and can play for more than 8 hours continuously 5. NICE GIFT: Sleep mask bluetooth headphone is the coolest choice for men, women, teenagers, boys, girls, boyfriends, girlfriends, wives, husbands, teachers, travelers birthday gifts Specification: Item Type: Bluetooth Sleep Mask Specification: 1 Set Material: Cotton Use: Home Applicable Scene: Most scenes Battery Type: Lithium battery Battery Capacity: 150mAh Size(LxW): Approx. 27 x 10.5cm / 10.6 x 4.1in. Package List: 1 x Sleep Eye Mask 1 x User Manual 1 x USB