3D Eye Mask Bluetooth Music Play Sleeping Headphones with Built-in HD Speaker Mask For Sleep Headphones Wireless Air Travel 5.0

Is Batteries Included : Yes Hign-concerned Chemical : None

Item Type : EYE PATCH Origin : Mainland China

Bluetooth version: 5.0 Bluetooth protocol: AGHSP Bluetooth transmission distance: 10 meters Headphone channel: Stereo (2.0) Music playback time: 7 hours at maximum volume, 10 hours at medium volume Microphone distance: 1 meter Bluetooth standby time: 72 hours Battery capacity: 180ma/h Battery power: 0.55W Speaker impedance: 32 ohms Speaker power: 0.02W Frequency range: 2.4-2.4835GHz Sensitivity: 45db Transmitting 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 Packaging includes:

1 x 3D Eye Mask 1 x USB charging cable 1 x Instruction manual