General Radio
Carrier Frequency : 2.4~2.480GHZ  
 
Radio Performance
Bluetooth Class 2, up to 5~10 meters (in open space).
(The maximum operating range depends on the paired phone model, battery power, and environmental factors.) 
 
Spread Spectrum
FHSS (Frequency Hopping Spread Spectrum) 
 
Bluetooth Profile Supported
HSP (Headset Profile)
HFP (Hands-Free Profile)
 
Antenna
Chip Antenna 
 
Input Power
5V, 200~500mA, AC adapter 
 
Battery
3.7V / 80mA / Li-Polymer / Rechargeable
 
Standby Time / Talking Time
200 hours / 4 hours
(The maximum operating time depends on the usage frequency and environmental factors. A long distance wireless connection and use with a mobile phone will increase the power consumption.) 
 
LED Indicator Status
Blue: Power on mode or Full charged
Red: Low power or being charged
Blue & Red: Pairing mode