The Astrum HS750 is a simple, reliable USB on‑ear headset designed for clear communication and everyday computer use. It is ideal for voice calls, online meetings, webinars, training sessions, and general audio playback. A single USB plug and play connection integrates both audio and microphone channels, ensuring instant compatibility with laptops and PCs. The lightweight on‑ear design includes soft foam ear cushions and an adjustable headband for long‑session comfort. A 180‑degree rotating boom microphone allows positioning on either the left or right side, improving voice pickup and reducing background noise. Built‑in in‑line controls allow quick adjustments to volume and call functions without interrupting your workflow. Key Specifications On‑ear dual‑sided design USB plug and play 180‑degree rotating boom microphone Noise‑isolating mic In‑line sound and call controls Soft foam ear cushions Adjustable lightweight headband 195 cm cable length Technical Details Feature Details Interface USB 2.0 Microphone Sensitivity minus 52 dB Cable Length 195 cm Frequency Response 20 Hz to 20 kHz Impedance 32 ohm Sensitivity 115 ±3 percent Dimensions 160 × 150 × 50 mm Weight Approx. 140 g Warranty 24 Months What’s in the Box HS750 USB Wired Headset User Manual