Specification:

Bluetooth version: Bluetooth 5.0

Frequency response range: 20hz-20khz

Support protocol: hsp, hfp, a2dp, avrcp

Bluetooth transmission distance: 10 meters without barriers

Body material: abspc+ aluminum alloy

Headphone battery capacity: 50mah

Rechargeable battery capacity: 3500mah

Speaker size: 8mm diameter

Charging time: about 1 hour

Charging voltage: dc 5v/1a

Sensitivity: 115±3db

With display: charging display, power display

Charging port: input dc5v 1a

Charging cable size: 50cm

Color: black/white/pink