Wireless Call Stereo Music Blackout Sleep Eye Mask

Product information:
Material: Super soft
Purpose: Anti-light radiation
Specification: Enjoying the black
Bluetooth version: plan 5.0
Bluetooth calling: full duplex
Wireless distance: barrier-free 10 meters and more
Frequency range: 2.402GHZ
Talk time: 15 hours
Waiting time: 180 days
Reception sensitivity <-80dBm
Rechargeable battery: 150 mah
Charging voltage: 5V 0.7

Size Information:

Package:
Eye mask x1