There are two versions to choose from, one 3D eye mask with Bluetooth music and one basic 3D eye mask without Bluetooth. Please choose what you need!

Bluetooth sleep eye mask adopts V5.0 program, binaural stereo design, comfortable cotton fabric with comfortable and soft breathability. For people with symptoms ofsleep difficulties, they can let them slowly go to sleep while enjoying music, and can also reduce the outside world. The noise disturbance provides a quiet sleeping environment, whether it is work break or sleep at night, Bluetooth sleep eye mask can help improve sleep quality, a magical sleep aid artifact!

Bluetooth parameters:
Bluetooth version: 5.0
Bluetooth protocol: AGHSP
Bluetooth solution: Blue message
Bluetooth transmission distance: 10 meters
Headphone channel: Stereo (2.0)
Music playback time: maximum sound 7H, medium volume 10 hours
Microphone distance: 1 meter
Bluetooth standby time: 72H
Battery capacity: 180ma/h
Battery power: 0.55W
Horn impedance: 32 ohms
Horn power: 0.02W
Frequency range: 2.4-2.4835GHz
Sensitivity: 45dB
Transmission power: 6dB
Audio output distortion: 0.6%
Audio output signal-to-noise ratio: 93dB
Charging time: 1-2 hours
Maximum input voltage: DC 5V
Maximum input current: 150mah
Maximum input power: 0.55W