SX- 985(CSR)
Correspond with: V4.1
Support: HSP. HFP. A2DP. AVRCP
 Connect distance: Within 10 meters
Time of Charge: 2.5 hrs
Frequency Table:2.4026-2.480GHz
Music time:  ≥8hrs                                   
Calling time: ≥10hrs            
Standby time:  ≥80 hrs     

Speaker:
*Driver unit: Φ13mm
*sensitivity: 114dB±4dB/1mW/ IEC- 318
*Impedance: 32 Ω±25％  at 1KHz  1mW(0.179V)  *Frequency response:20Hz-20kHz  
*Maximum Power output: 8mW

Microphone:
*Driver unit: Φ4.0×1.5 mm
*  sensitivity: -52±4dB  (0dB=1V/ubar，at 1kHz)
* Impedance: ≤2.2KΩ (f=1kHz)