Specifications:

Brand: Supology
Bluetoo version: V4.0
Transmission Range: 10 m
Profile support:HSP/HFP/A2DP/AVRCP
Stand-by time:200 hours
Talk time:6 hours
Play music time:4 hours
Charging time:1 hours
Frequency range:2.402G-2.480G
Ambient temperature:-20/+60 C
Driver:11.5mm
Impedance: 16±15%
Frequency response: 20-2000HZ
Sensitivity: 110dB±3 dB
with microphone
 
Features:
Ear and tail pipe connection with oblique angle design, comfortable and easy to wear.
It has high quality sound, enjoy your life.
A perfect gift for yourself or friend
 
 
Package contents: 
1 x Bluetooth 4.0 Earphone
1 x User Manual 
1 x Calbe Clamp, 
2 x Pair of Earbud, 
2 x Ear Hook,