Model Number: JM-302 Brand Name: Kimmar Key Specifications/Special Features: Adjustable Metal Headband Telephone Noise Reduction Headsets with Microphone For Office Call CenterFeatures:1. 100% brand new and high quality2. Noise-cancelling microphone filters out background noise, so voice transmission is exceptionally clear.3. Bendable mic arm 330 degrees rotatable to be positioned for optimal comfort and voice transmission. Swing-sway feature lets you move the mic out of the way for beverage breaks4. Adjustable metal headband can be adjusted
5. Replaceable soft foam or soft leatherette ear pad optional
6. Speaker and headband connection rotate 360 degree
7. Quick-disconnect function
8. Stylish design, lightweight, durable and comfortable for all day use

Specifications:

1. Material: Metal, ABS and POM
2. Sensitivity: 108dB±2dB/mw at 1KHz
3. Frequency Response 200-4K Hz
4. Omni directional Microphone
5. Frequency response: 20-3000Hz
6. Impedance: 150Ω±5Ω
7. Sensitivity:-58dB±3dB
8. Maximum Power: 10mW