Bluetooth technical parameters:

Headband material: Taylon

Bluetooth version: 5.0

Bluetooth protocol: AGHSP

Bluetooth solution: Blue Message

Bluetooth transmission distance: 10m

Headphone channel: stereo (2.0)

Music playback time: maximum sound 7H, medium volume 10h

Microphone distance: 1m

Bluetooth standby time: 72H

Battery capacity: 150ma/h

Battery power: 0.55W

Horn impedance: 32 Ω

Horn power: 0.02W

Frequency range: 2.4-2.4835GHz

Sensitivity: 45db

Transmission power: 6dB

Audio output distortion: 0.6%

Audio output SNR: 93dB

Charging time: 1-2 hours

Maximum input voltage: DC 5V

Maximum input current: 150mah

Maximum input power: 0.55W