Feature: 

Hi-Fi sound quality use 8mm speaker unit.

Low consumption with long working time 7 hours.

With 4 LED indicator light for current battery level.

Ultra lightweight design 

Specification:

BT 5.1, Chipset: Bluetrum 5616

Speaker size: Φ8mm, 32Ω

Speaker sensitivity: 92.27dB +-3dB

Battery capacity: 40mAh x 2

Input charging port: Micro USB 

Charging time: approx. 2 hours

Playing time: approx. 4-5 hours 

Touch control

Material: ABS 

Battery capacity: 300mAh

Charging time: approx. 2 hours

Full charging times for earbuds: Up to 2-2.5 times

Weight (earbuds + box): 41g