FL-M89DBT headset

 Pairing Name: M890BT  Bluetooth Specifications: CSR‐V5.0, dual mode, downward compatible.  Frequency Range: 2.4GHz‐2.48GHz  Support Protocols: A2DP, AVRCP, HFP, AAC, etc.  T i i di t t 30 t (T i i di t i Specifications: Transmission distance: up to meters(Transmission distance varies on base of the environment and Bluetooth device)  Pair with 2 Bluetooth devices simultaneously. Microphone:  Microphone: Directional noise reduction microphone Acoustic noise canceling structure Mic Sensitivity: ‐38dB±3dB  Crystal clear sound and voice(DSP) Speaker:  Wideband Speaker Frequency: 20Hz‐20KHz.  Distortion: ≤1%  Sensitivity: 118dB±3dB Sound Channel:  Binaural: Stereo  Monaural: Mono Battery:  Battery Capacity: 320mAh Charging Voltage:5V DC Maximum Talk Time: 20 hours  Standby Time: 200 hours  Charging Time: 2 hours  Charging Interface: Micro USB & Magnetic Charging Base Net Weight: M890BT Mono 70g M890BTD Duo 95g  Charging Base:115g