HOCO E31 Mini bluetooth Earphone Single Wireless HiFi In-ear Headphone with Mic for

Specification:
bluetooth Version: bluetooth V4.2
Support Agreement: Headset Hands-free A2DP Avrcp
Battery capacity:55mAh
Charging time: about 2 hours
Call/music time: 3 hours
Standby time: 90 hours
Size: 60*18*25mm
Weight: 7g
Brand: Hoco
Color: black, white
Material: ABS
Supported languages: Chinese and English