Feature: 1. ADJUSTABLE DESIGN: Headset adopts micro pressure sensitive suspension headset design, more stable, adjustable to adapt to the size of the head, effective decomposition of head pressure. 2. WIDEBAND HD SPEAKERS: Telephone headphone adopts wide band HD speakers to effectively optimize the sound of the voice band. Tuning balance technology, clear restoration of call voice. 3. NOISE CANCELLATION: Computer headset adopts professional microphone noise reduction technology, which can block out 90% of background noise. Single pointing microphone double noise reduction. 4. ERGONOMIC DESIGN: Wired business headset is ergonomically designed with an extended microphone pole and 360 degree rotation for stable voice output. 5. PRECISE POSITIONING: Call center headset has a threaded design on the inside of the microphone bar, making it easy to adjust the microphone position for precise positioning and smoother voice calls. 6. COMFORTABLE WEAR: Headset is made of artificial protein leather case, wider and thicker, more comfortable to wear. Gradient water transfer pattern support arm, young and fashionable. Specification: Item Type: Wired Business Headset Material: ABS, Protein Leather Earphone Type: Moving Coil Type NdFeB Magnetic Speaker Headphone Frequency Response: 100HZ-6.8KHZ Headphone Sensitivity: 110±3dB (At1KHz1mw) Headphone Impedance: 150Ω5% Headphone Distortion: <1% Microphone Directionality: Single Pointing Microphone Frequency Range: 50HZ-3.0kHZ Microphone Sensitivity: -42±3dB. Package List: 1 x Wired Business Headset1 x Replacement Earmuffs1 x Storage Box1 x Storage Bag