Bluetooth specification:

V4.1

Bluetooth version:

The latest version A2DP1. 2 and AVRCP1.0 configuration file support

The wireless receiving:

Support bluetooth headset and hands free mode (HFP) 1.5

Frequency:

2.402 to 2.480 GHZ,2.402 GISM frequency band

Rf performance:

Sensitivity: - 90 DBM, transmitted power maximum 4 DBM

Power light:

Blue light, red light

Speaker:

10mm  100 mWatt output

Microphone:

Capacitor type, diameter3 mmx1.5mmHeight (front load), -45~ -51dB,

The battery 

100 mah lithium rechargeable battery

Charging:

Micro USB

Charging time

About 2-3 hours

Talk time

About10 hours

standby time

About 200 hours

Working temperature

-10~50

Storage temperature:

-20~80