Supermax HK3 Earbuds 6 Colors Transparent Body EarphoneBluetooth Wireless Earphones with mic

Model: HK3 Product Name: Air31 Crystal True Wireless Earphone

Bluetooth version: Bluetooth 5.3+EDR

Audio decoding protocol: SBC/AAC

Transmission range: 15m

Speaker type: coaxial dual moving coil

Mobile coil speaker specification: 8mm

Speaker sensitivity: 106 ± 3dB

Frequency range: 20Hz~20kHz

Music time: approximately 7 hours

Talk time: approximately 4 hours

Total working time: approximately 25 hours

Earphone battery: 30mAh

Rechargeable case battery: 300mAh, capable of charging headphones 4 times

Headphone charging time: approximately 1 hour

Charging time of the charging box: approximately 1.5 hours

Charging box input: 5V=0.45A

Earphone size: approximately 14.1x9.5x3.5cm

Single earphone weight: approximately 11g

Overall size: approximately 57.5x47.5x19cm