Features 1.Noise Canceling: Telephone headset with professional microphone noise reduction technology, can shield 90 percent of the background noise; premium tuning balance technology, clear restoration of the call voice. 2.Adjustable Angles: Single ear customer service headset with built in HD microphone can be rotated to any position to make your voice clear. Less noise and clearer sound. 3.Lightweight and Comfortable: Phone headset provides an ultra lightweight wearing experience. The soft ear cushions and flexible headband won't put any burden on your ears. The ultra lightweight design ensures that you can focus on your conversation. 4.Sturdy and Durable: Phone headset is made with rugged construction and materials to ensure superb performance and durability. The long headset cord gives you more flexibility when you're on the move. 5.Wide Application: Phone headset is suitable for computers. Suitable for home, office, call center, telemarketing, insurance, customer service, teleconferencing, etc. specificationItem Type: Telephone Headset Material: ABS, Protein Leather Headset Type: Moving Coil Iron Shed Magnetic Horn Headset Frequency Response: 100HZ~6.8KHZ Headset Sensitivity: 110 3dB (at1KHz1mw) Headphone Impedance: 1505% Headphone Distortion: