Specification

Bluetooth version:V5.0

Support profile:A2DP v1.3,AVRCP v1.6,HFP v1.7,HID v1.1,AVCTP v1.4,AVDTP v1.3,and SPP v1.2

Working distance range:10m

Speaker size:8mm

Frequency range:2.402GHz-2.480GHz

Battery Specification:1.Earphones:3.7V,55mAh  2.Charging box:3.7V,500mAh(it can charge the earphones for 4 times when it fully charged)

Charging voltage:DC 5V

Charging time:1.Earphones:about 2 hours  2.Charging box:about 3 hours

Music time:about 3.5 hours

Please contact Minna for more information.  
Email:  Ren_xiaowei@alic.com,  minna_alic@163.com
Mobile: 86-13637097527