Noise Reducing Handset

The Noise-Reducing  Handset uses a sophisticated microphone to filter out background noise.  It also filters out feedback commonly heard from paging systems. It is also known as the Confidencer handset/microphone. Unlike standard microphones, which only have ports in the front, noise-canceling microphones have ports in the front and the rear. Since ambient noise enters the microphone from both ports, the same pressure is put on both sides of the diaphragm. Because the ambient noise doesn't cause the diaphragm to vibrate, it is not heard.  Since speech is entering from only the front of the microphone, the diaphragm vibrates from only the speech, which means the background noise isn't heard. With a noise-reducing handset, the caller must speak directly into the microphone.

Each handset consists of the following elements:
- Handset type: Standard Receiver and Noise-reducing Microphone
- Handset handle and cap material: ABS Plastic
- Wiring: Four 24-gauge Teflon-insulated wires (2 for receiver, 2 for transmitter), with a single modular plug (Optional 4 spade conductors)
- Armored Cord Assembly: 304 Stainless Steel, Interlock style. Inside Diameter, 0.250", 6.350mm. Outside Diameter, 0.329", 8.357mm. Linear Pull Test Load, 1000 lbs., 454 kg
- Includes a steel lanyard, which is anchored to the handset handle. The steel lanyard has a pull test load of approx. 1000 lbs, 454 kgs.
- Other Components: lanyard block retainer; anti-rotation wedge; transmitter holder; blue rubber grommet to seal handset/cord connection

Custom colors, cord lengths, microphones, and wire terminal/plugs are available depending on details and volume. Call 1-800-884-4835 or fill out the contact us form to inquire about custom handsets or volume quotes.
-Handset caps are sealed with high-strength epoxy adhesive before shipping, unless otherwise requested.

Electret-compatible Microphone Specifications:
- Sensitivity at 1 kHz: -42± 3 dBV
- Impedance at 1 kHz: 2 kohms ± 35% ohms
- Maximum Drain Current: 0.5 mA at 1.5 VDC
- Operating Voltage Range: 1.5 VDC
- Noise Cancellation: NLT 6 dB (300 Hz to 3.3 kHz)

Master Case Qty: 30 pcs