Cortelco Noise Cancelling Monaural Corded Headset

Features:

• Noise canceling cardioid microphone filters up to 80% of background noise
• 300° adjustable microphone boom
• Active Protection technology for hearing protection
• Ultra Flex microphone wires allow more than 20,000 boom rotations
• Connects to either 2.5mm or RJ9 Quick Link cable
• Cord Length: 1 meter
• Gold-plated phosphor bronze contacts
• Receiver Impedance: 150? ±15%
• Receiver Sensitivity: 103 ±3dB