User's Manual

3.1 Bluetooth

Bluetooth chipset IS2021S-203

Bluetooth version 4.1

Profile A2DP AVRCP HFP

RF 2402~2480MHz

Receiving distance 360° 10meter

3.2 MIC

MIC SPEC: 3.7*2.2*1.1mm MEMS MIC

Sensitivity：-42±3dB

3.3 Battery

Battery Spec：3.7V 120mAh Capacitor type lithium ion battery

Battery size：6.0*12*24mm

Battery life：300 times

3.4 Speaker

Speaker OD：

Φ10mm

Speaker impedance：16Ω

Rated power：5mW (Max power: 10mW)

Frequency response：100～10KHz；

Sensitivity：95dB±3dB；

Speaker curve：