Verge S9 Master Gaming Headset

1: Drive dimension: 53mm. 2: Impedance: 64 . 3: Sensitivity: 100 3db. 4: Frequency range: 12-25khz. 5: Mic size: 6.0*2.7Mm. 6: Mic sensitivity: -38 3db impedance: 2.2Khz. 7: Audio cable: od 5mm*170mm including connector                                                             8: receiver: c-to-a port dual-in-one. 9: Supported protocols: a2dp hfp hsp avrcp. 10: Bluetooth 5.4, Effective range: 10m. 11: Carrier frequency mhz : 2402 2480mhz. 12: Battery: 2000mah 3.7V, charging time: approx. 4 Hours. 13: Operating time: 250h at approx. 50% Volume Lights off

1: Drive dimension: 53mm. 2: Impedance: 64 . 3: Sensitivity: 100 3db. 4: Frequency range: 12-25khz. 5: Mic size: 6.0*2.7Mm. 6: Mic sensitivity: -38 3db