Expert Features Enhanced Digital Stereo Sound – Equipped with fine-tuned 30 mm drivers, the H390 delivers richer, clearer digital audio for video meetings, online classes, music, and even casual gaming. Noise-Canceling Rotating Microphone – The left-side, bi-directional mic reduces background noise for professional clarity. The boom arm rotates for better positioning and can be tucked away when not in use. Convenient Inline Controls – Stay focused with inline volume and mute buttons built into the 1.9 m cable, letting you adjust audio without breaking concentration. Work-From-Home Comfort – An adjustable headband with swivel-mounted leatherette ear cushions ensures long-lasting comfort. Cushions are also easy to clean, making the H390 great for office, call center, or remote work use. Simple Plug-and-Play USB – Compatible with Windows®, macOS®, and ChromeOS™, just connect the USB-A (or USB-C depending on model) and you’re ready to go. Certified Works With Chromebook™. Eco-Conscious Design – Made with up to 54% post-consumer recycled plastics (varies by color) and packaged responsibly with FSC™-certified materials. Reliable & Durable – Backed by a 1-Year Limited Hardware Warranty, the H390 is built for everyday business and personal communication. Expert Specs Category Specification Dimensions (H × W × D) 171 × 151 × 68 mm Weight 197 g Cable Length 1.9 m Headband & Earcups Adjustable with swivel-mounted leatherette cushions Driver Size 30 mm Speaker Frequency Range 20 Hz – 20 kHz Speaker Sensitivity 94 dB ± 3 dB Impedance 32 Ω Microphone Type Bi-directional, rotating boom Microphone Sensitivity -17 dBV/Pa ± 4 dB Microphone Frequency Range 100 Hz – 10 kHz Connection Type USB-A (USB-C on certain models) Controls Inline volume and mute Compatibility Windows®, macOS®, ChromeOS™; Certified Works With Chromebook™ Materials Plastic, silicon, metal Sustainability 42–54% post-consumer recycled plastic (depending on color); FSC™ packaging Carbon Footprint 4.78 kg CO2e Warranty 1-Year Limited Hardware Warranty