Comfortable to Wear --- S8 Bluetooth sleep headphone features Ergonomically design with skin-friendly memory foam to give you more comfortable experience. The band is soft and stretchy, just the right amount of tightness of the head size. It's very comfortable to use.

Bluetooth 5.0 Stereo Sound --Nivava is a professional headset brand that the sound quality of its products is very good, including S8. S8 Bluetooth sleep mask adapts latest Bluetooth 5.0 version can provide good sound and stable connection when you using.

Long Battery Life --- S8 uses 200MA large capacity polymer battery, built-in the premium high-performance battery, charging about 2 hours can provide more than 10 hours of play time.

Good Shading --- S8 can block out the light well for it's 3D design. The 3D Contoured Sleeping Headphone for sleeping nose wing design will not easily cause light leakage from moving sleep mask that you can have a good sleeping.

Support---1 Year Hassle-Free limited product support and quick response customer service, if you have any questions while using, please Easy to Reach our Customer Service via Amazon email or through the contact information on the instructions.