Bluetooth Central Sleeping Headband

Durable: The earphones are made of high-quality materials, which is durable and can be used for a long time. Adjustable: The adjustable strap allows you to adjust the size of your headphone according to your preference.

Bluetooth version: 5.0

Bluetooth transmission distance: 10M

Music playing time: Maximum sound 7h, medium volume 10 hours

Microphone distance: 1m

Bluetooth standby time: 72h

Battery capacity: 150mA / h

Battery power: 0.55w

Horn impedance: 32 ohm

Horn power: 0.02w

Frequency range: 2.4-2.4835ghz

Sensitivity: 45dB

Transmitting 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