Cooler Master CH351 Wireless, Bluetooth 5.4, Zelene

Headphone Driver Diameter: 50mm Headphone Frequency Response: 20-20,000Hz Headphone Impedance: 32? Headphone Sensitivity (@1kHz): 100 dB ± 3 dB Headphone InputMaximum: 30mW Headphone Cable LengthApprox.: 1.8m Headphone Connection: BT5.4, 2.4GHz & 3.5mm, USB Type C: Charging Headphone Headband Material: Steel and plastic headband, PU leather and foam cushion Headphone Ear Cushion Material: Protein leather Headphone Sidetone: Yes (Hardware built-in) Headphone Latency: <20ms (In 2.4GHz mode, tested by CM labs) Battery: >30hrs (Tested at 50% volume by CM labs) Microphone Pick-up Pattern: Uni-Directional Microphone Frequency Response: 100 - 8,000 Hz Microphone Sensitivity (@1kHz): -40 dB ± 3 dB Microphone Type: Detachable Flexible Microphone Transmitter Plug Interface: USB Type C Transmitter Wireless Range: 20m Dimensions (L x W x H): 179.4 x 96.3 x 207 mm / 7.06 x 3.79 x 8.15 inches Physical Weight: Approx. 404 g / 0.89 lbs, Approx. 328 g/ 0.72 lbs (w/o Accessories)