HamiltonBuhl RMTK 2.4GHz Wireless Microphone System Instruction Manual

June 9, 2024
HamiltonBuhl

HamiltonBuhl logo

RMTK Instruction Manual
2.4GHz Wireless Microphone System

HamiltonBuhl RMTK 2.4GHz Wireless Microphone System

Product Introduction

This is a compact wireless microphone system that utilizes 2.4GHz technology for audio signal transmission. It is extremely compact, lightweight, portable, and lasts up to 4 hours of continuous use.
The transmitter and receiver pair automatically after turning on, and provide great reliable communication. The receiver has a 3.5mm AUX output and is compatible with a variety of devices like computers, smartphones, speakers, and cameras. The system includes a transmitter, a receiver, and a lavalier microphone, which can also be handheld. It is ideal for remote teaching, public speaking, audio recording, podcasting and live streaming.

Features

  • Automatic pairing
  • Built-in antenna
  • Adjustable microphone volume
  • Lavalier microphone
  • Built-in Battery, up to 4 hours of operation
  • 2.4GHz wireless transmission technology with up to approx. 95′ transmission range
  • Compact, lightweight, and portable
  • Compatible with multiple devices

Specifications

Transmitter

Wireless Transmission Technology 2.4G
Frequency 20Hz~20KHz
Polar Pattern Unidirectional
Sensitivity -30dB ±3dB
S/N 74dB
Volume Control 6~12dB
Current <50ma
Transmission Range 98′ approx.
Connection Method Automatic
Input Interface 3.5mm TRRS Jack
Power Supply Built-in Li-ion, 650mAh
Charging Port Micro USB, DC 5V=1A Max.

Receiver

Wireless Transmission Technology 2.4G
Current <50ma
Transmission Range 98′ approx.
Connection Method Automatic
Output Interface 3.5mm TRS
Power Supply Built-in Li-ion, 650mAh
Charging Port Micro USB, DC 5V=1A Max.

Included in the Box

HamiltonBuhl RMTK 2.4GHz Wireless Microphone System - Fig
1

Product Registration
Go to: www.HamiltonBuhl.com

  1. Click on Customer Care
  2. Click on Product Registration Icon
  3. Please fill out all fields marked with * to register

Warranty:
Warranty begins the date item ships from our warehouse. All products have a one year warranty from original date of shipment, unless otherwise noted.

Transmitter

HamiltonBuhl RMTK 2.4GHz Wireless Microphone System - Fig
2

Receiver

HamiltonBuhl RMTK 2.4GHz Wireless Microphone System - Fig
3

Powering On, Pairing & Mode Selection

  1. Turn on the transmitter and receiver.
    The LED indicators on both units will flash slowly.

  2. The two devices are paired automatically. The LED lights will flash rapidly. The LED light is always on after pairing is completed.

Volume Control

Press the (+) or (-) button on the transmitter to control the volume.

HamiltonBuhl RMTK 2.4GHz Wireless Microphone System - Fig
4

Using an External Lavalier Microphone or Audio Source

Insert the included lavalier microphone into the external microphone jack of the transmitter.

  • When an external microphone is connected, the built-in mic of the transmitter is automatically disabled. After the external mic is removed, the built-in mic is automatically enabled.
  • This microphone jack supports external audio input at the same time. An audio cable with a 3.5mm TRRS plug is required (not included). For best performance, use the included lavalier microphone.

Charging

Connect the USB ports of the transmitter and receiver with the Micro-USB cable provided for charging (See diagrams in #4 and #5 above).

Precautions/Notes

  • Avoid getting the units wet.
  • Do not disassemble or modify the wireless microphone in any way.
  • Do not use within medical institutions such as hospitals, near electronic medical equipment, aircrafts, or where radio interference may occur. The wireless microphone may interfere with other devices and cause damage.
  • Thls product is a precision instrument. Do not drop, subject it to impact or excessive vibration.
  • Keep this product away from extreme cold or high temperatures, and away from humidity.
  • Use wireless equipment only in areas where permitted.
  • If playback equipment (such as speakers and amplifiers) is placed next to the microphone during recording, feedback may occur. Move the device further away from the microphone or reduce the volume.
  • If the microphone power is turned off, or the receiver and microphone transmitter are not connected when starting to record, there may be noise or no sound. Make sure indicators on the receiver and microphone are lit in blue, and that the two devices have connected properly, then begin to record.
  • Do not let your hands or other objects touch the microphone when recording, to avoid unwanted noise.

Troubleshooting

No power Make sure the power switch is on.
No sound during recording 1.Make sure the Power on/Mode Switch is on.

2.Make sure your phone case does not interfere with the connection of the input jack.
3.Some camera apps for Android phones and tablets may not support the external microphone. We then recommend you download a third-party camera app.
Feedback noise| You may get interference when using in an environment with multiple 2.4G devices.Try to use in a quiet  nvironment so that low/high frequency noise is not captured by the mic.
Poor transmission| 1.Remove any obstacles between the transmitter and receiver that may Interfere with performance.
2.Restart the transmitter and receiver.

Digital Webcam
with Flexible Gooseneck Stand

HamiltonBuhl RMTK 2.4GHz Wireless Microphone System - Fig
5

Instructions

This is a plug-and-play webcam/digital camera.If you are running Mac OS x10.4.8 or later, Windows XP, Vista or Win7/8/10, your computer will automatically recognize the device.

  1. Plug the webcam’s USB interface into a USB slot on your computer. Your PC will prompt “found new hardware” or on Mac will show up as a device in your “Finder” window.
  2. Once your system recognizes the new webcam, you can use any third party software such as Skype, MSN video or iMovie.
  3. To focus the camera, rotate the front lens, as desired.
  4. Position the base where desired.

Features and Specifications:

  • Bendable arm allows for optimal positioning
  • Built-in microphone
  • Non-slip base
  • System: Windows XP, XP2, Vista, Win 7/8/10, Mac OS x10.4.8 or later & Android 4.0 or above with UVC
  • Resolution: 1080 x 720
  • Rate: 30 FPS
  • Interface Type: USB 2.0 High Speed
  • Imaging distance: 30mm ~ Infinity
  • 1x IR LED Light: Infrared for shooting at night/low light
  • Shutter button: Easy capture for still images
  • Captured image format: MJPEG/YUV2 (YUYV)
  • Captured video format: AVI, WMV
  • Working Temperature: 32°~140°
  • Materials: ABS plastic
  • Sensor: 1/4” HD CMOS Image
  • 5 megapixels
  • Cable length: approx. 4’

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www.HamiltonBuhl.com
80 Little Falls Road • Fairfield, NJ 07004
1-800-631-0868

References

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