Product information:Function: call functionChannel: 2Bluetooth version: 5.0How to use: head-mountedFeatures:Music goggles-four core selling points1. Music playback 2. Bluetooth connection 3. Sleep aid 4. Breathable and comfortableLunch break: Isolate glare and noise, listen to music for a while, feel comfortableStrong blackout, no ear pressure: immersed in a sea of music and sleepWireless Bluetooth music eye mask: music + eye mask = good sleep.The small earphones are wrapped in a soft eye mask. The 360-degree sleeping position is 0 pressure without pressure, and it naturally fits the bridge of the nose, enhances the shading effect, meticulous edging technology, and streamlined design. Cover the air and light, take care of your sleep time, and give you a different sleep experience.Packing list:1*Eye mask，charging cable, storage bag, manual