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Tech - Wireless Microphone

This product guide was written by NTechGalaxy Staff

Last Updated Oct 01, 2025

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What is the use of Wireless Microphone?

A wireless microphone is a type of microphone that does not need a physical cable (wire) to connect to an amplifier, speaker, or recording device.

Instead, it uses radio frequency (RF), Bluetooth, or infrared (IR) signals to transmit the captured sound wirelessly to a receiver, which is then connected to the sound system or recording device.

Uses of Wireless Microphone:

  1. Freedom to Move: Performers, teachers, speakers, or YouTubers can walk around without being tied to a wire.

  2. Stage Performances & Public Speaking: Singers, anchors, and event hosts use it on stage to interact with the audience easily.

  3. YouTube & Content Creation: Useful for vloggers, unboxing videos, tutorials, and interviews for clear sound recording

  4. Meetings & Online Classes: Helps teachers, trainers, and office staff present clearly without sitting near a device.

  5. Fitness & Outdoor Activities: Trainers and coaches use it for giving instructions while moving.

  6. Professional Video Shooting: Filmmakers and journalists use it for interviews and live reporting.​

 

In short:
The use of a wireless microphone is to capture clear audio while allowing the speaker or             performer to move freely without cables.

Key Points:

  1. No cable needed → allows free movement.

  2. Transmitter & Receiver: 

  • ​The microphone (with built-in transmitter) sends the audio signal.

  • The receiver (connected to speaker, camera, or mixer) picks it up.

   3. Types: Handheld, Lavalier (clip-on), Headset, Instrument mic.

   4. Used in: Stage performances, YouTube recording, public speaking, online classes, interviews,     and events.

​

In short:
A wireless microphone = A mic that converts voice into a wireless signal and sends it to a receiver, so the user can move freely without being limited by wires.

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pTron KWM-1 Omnidirectional Type C Wireless Microphone w/DSP Noise Cancellation

The pTron KWM-1 is a compact wireless microphone system designed for portable audio recording, vlogging, interviews, teaching, and content creation.

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​Key Features:

  1. Omnidirectional microphone pickup: Captures sound equally from all directions.

  2. Type-C receiver (plug & play): The receiver plugs directly into a device’s USB-C port; no additional software or drivers required.

  3. DSP Noise Cancellation: Built-in digital signal processing to reduce background noise and improve voice clarity.

  4. Wireless Range: Up to about 25 meters (in open, unobstructed conditions).​

  5. Dual transmitters + single receiver: The kit includes two mic transmitters and one receiver.​

  6. Rechargeable transmitters: Each mic unit is charged via Type-C cable (full charge ≈ 1 hour).

  7. Plug & Play operation: Once connected and powered, the mic and receiver automatically pair for instant use.

  8. Compact design: Small size and lightweight, with accessories like windproof foam and clips for practical use.

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Specification:

Brand: pTron

Model Number: KWM-1

Warranty: 1 Year

Connectivity Technology: RF (2.4GHz)

Wireless Range: Up to ~ 25 m in ideal conditions

Connector Type: USB Type-C

Special Feature: Clip, Noise Reduction

Compatible Devices: Smartphone, Tablet

Polar Pattern: Omnidirectional

Microphone Form Factor: Lavalier

Power Source: Battery Powered

Number of Batteries: 3 9V batteries required. (included)

Number of Channels: 2

Product Dimensions: 5.7 x 2.8 x 3.4 Centimeters

Item Weight Unit of Measure: 30 Grams

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Pros:

  1. Freedom of Movement: Since it's wireless, you can move around without being tied down by cables. Good for vlogging, interviews, presentations.

  2. Type-C Plug & Play Receiver: Easy connection to modern phones/tablets with USB-C. No extra software or drivers needed (usually).

  3. Omnidirectional Mics: Able to pick up voice from all directions — helpful when more than one person is speaking or for more natural/ambient recordings.

  4. DSP Noise Cancellation: Helps reduce unwanted background noise (fans, air-conditioning, ambient hum) so voice comes out clearer.

  5. Dual Transmitters: The kit includes two mics, so you can mic two speakers simultaneously (e.g. interviewer + interviewee).

  6. Decent Wireless Range: Up to ~25 meters in open, unobstructed conditions, which is pretty good for many indoor uses or short outdoor shoots.

  7. Affordable for Features: For the feature set (dual mics, noise cancellation, plug & play, 25 m range), the price is reasonable — may offer good value.

Cons:

  1. Range in Real-World Drops: 25 m is ideal in open line of sight. Obstacles like walls, people, furniture reduce the effective range.

  2. Battery Life & Charging: The transmitters need to be recharged, if battery is low during recording it’s disruptive. Runtime may not be huge; need to keep them charged.

  3. Power Draw from Device: The receiver draws power from the phone/tablet it’s plugged into, which can burden device’s battery.

  4. Noise Pickup (Ambient Noise): Because it's omnidirectional, it picks up sounds from all around; in noisy environments the recording may include more unwanted noise, even with DSP.

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