Quick view JOYROOM JR-T03S Bluetooth 5.0 Binaural TWS Bluetooth Headset JOYROOM MSRP: $54.76 - $54.86 parameter 1. Bluetooth version: V5.0 2. Frequency response: 20hz-20khz 3. Sensitivity: 103dB SPL +/- 3db 4. Support protocol: HSP / HFP / A2DP / AVRCP 5. Impedance: 16 ohm 6. Voltage: 3.3-4.2 V 7... Qty in Cart: 0 Price: MSRP: $54.76 - $54.86 Subtotal: Options