Brand Kensington , Model K83452WW Product Type Headset, Packing Brown Box, Impedance 32 Ohm, Sound Mode Stereo, Sound Pressure Level 110 dB, Connectivity Technology Wireless, Features: Sidetone, Rapid Charging, Passive Noise Cancellation, LED Lighting, LED Indicator, Hearing Protection, Flip to Mute, Ergonomic Design, Comfortable, Busylight, Auto Play/Pause, Breathable, Wireless Technology Bluetooth, Minimum Frequency Response 20 Hz, Maximum Frequency Response 20 kHz, Bluetooth Standard Bluetooth 5.2, Wireless Operating Distance 98.4 ft, Noise Canceling Yes, Virtual Assistant Supported Siri, Google Assistant, Host Interface USB Type C, Country of Origin China, Limited Warranty 2 Year, Earpiece Design Over-the-head, Over-the-ear, Earpiece Type Binaural, Driver Size 1.57', Microphone Technology Electret Condenser, Noise Cancelling, Microphone Design Boom, Integrated Microphone Yes, Color Black, Form Factor Ear-cup, Ear Cushion Material Leatherette, Memory Foam,