Recrsi Neckband Headphone NY31

Brand name: RECRSI
*Model: RE-NY031
*Wireless Version: 5.1
*Stabdby Time: 50 Hours
*Duration Time: 40 Hours
*Charging Power: 120mA
*Charging Type: Micro USB
*Sensitivity: 102dB at 1kHz
*Impedance: 16 Ohm
*Frequency Range: 20 Hz-20KHz
*Supported Profiles: HSP, HFP, A2DP, AVRCP
*Mic Sensitivity: -42dB