3D Wireless 5.0 Bluetooth Music Eye Mask Call Binaural Stereo Music Blackout Sleep Eye Mask

Bluetooth version:5.0

Bluetooth protocol：AGHSP

Bluetooth solution: Blue News

Bluetooth transmission distance:10Rice

Headphone Channel: Stereo(2.0)

Music Playback Time: maximum sound7H,Medium volume10Hours

Microphone distance:1Rice

Bluetooth Standby time:72H

Battery capacity:180ma/h

Battery power:0.55W

Speaker impedance:32Ohm

Speaker power:0.02W

Frequency range：2.4-2.4835GHz

Sensitivity：45db

Transmit power：6dB

Audio output distortion：0.6%

Audio output signal-to-noise ratio:93dB

Charging time:1-2Hours

Maximum input voltage:DC 5V

Maximum input current:150mah

Maximum input power:0.55W