Karaoke USA WM900 Professional UHF Wireless Microphone User’s Guide
- June 13, 2024
- Karaoke USA
Table of Contents
Karaoke USA WM900 Professional UHF Wireless Microphone
Introduction
Thank you for purchasing our 900 MHz Professional UHF (Ultra High Frequency) Wireless Microphone. This is a PLL (Phase Locked Loop) synthesized wireless microphone utilizing a 16-bit Digital Pilot ID that quickly pairs frequencies and prevents drifting between multiple transmitters (microphones) and receivers. Our microphones will lock in up to 20 unique channels without them walking on each other or interfering. Connect up to 20 wireless microphones for your orchestra, band, or stage theatrical performances. Please read this guide carefully to get maximum performance and functionality.
Items in this package
FCC Statements
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
- This device may not cause harmful interference, and
- This device must accept any interference received, including interference that may cause undesired operation.
Notice: Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
Quick Start Guide
-
Microphone – Loading Batteries
Hold the microphone body and turn the lower part of the microphone body counterclockwise. Insert 2 x AA batteries (not included) into the battery compartment. Make sure battery positions match polarity signs for proper installation. -
Receiver – Charging and Use
1. This Receiver has a built-in Rechargeable Lithium-ion Battery. Make sure the battery is fully charged for about 1 hour with the provided USB charging cable. A fully charged receiver allows for up to 6 hours of normal use.
2. Insert the 6.3 mm (1/4 inch) male end into your microphone jack on your karaoke machine, amplifier, or electrical component.
3. Slide the On/Off Switch at the side of the Receiver to the on. The blue indicator will light up.When singing, adjust your equipment’s microphone volume level to a comfortable level. If you experience feedback from your equipment, lower the microphone volume or move the microphone away from the speaker(s).
Index
Transmitter ( Wireless Microphone)
- The microphone grill protects the inner microphone cartridge from potential damage. Take care when handling the microphone to prevent physical damage. DO NOT allow the microphone to drop on the floor. Any sudden shock can damage delicate components.
- The microphone LED window displays a battery icon that will flash when fresh batteries need to be inserted. The number icon reflects the frequency channel being used.
- Power On/Off – Press once to turn on the Microphone. Depress and Hold to switch off.
- Channel Frequency Select Button – Press this button to change the current frequency channel and select another.
- Battery compartment cover – rotate counter-clockwise to open the compartment and insert 2 x AA batteries (alkaline or rechargeable). Batteries are not included. Match polarity when installing batteries.
Receiver
This Receiver has a built-in Rechargeable Lithium-ion Battery. Make sure the battery is fully charged for about 1 hour with the provided USB charging cable. A fully charged receiver allows for up to 6 hours of usage.
- Power On/Off – slide the On/Off Switch at the side of the Receiver to on.
- When powered on, a blue LED light will be constantly on. When the blue LED light flashes and gets dimmer, it indicates the internal rechargeable battery needs to be recharged.
- The signal indicator light will reflect a constant on the green LED light. When speaking into the microphone, a red light will flash. In pairing mode, when paired successfully, the green LED light will flash 4 times.
- A Micro USB port is used to charge the internal battery.
- The signal output stud is a standard 6.3mm plug that will match most any karaoke or amplifier equipment.
-
UHF Frequency Channels
This microphone has a total of 20 selectable frequency channels. This allows the user to select a different frequency if by chance there is an external frequency issue causing problems. -
Available Frequency Channels Include
902.3, 903.4, 904.70, 906.0, 907.3, 908.6, 909.9, 911.2, 912.5, 913.8, 915.1, 916.4, 917.7, 919.0, 920.3, 921.6, 922.9, 924.2, 925.5, 926.8
Care and Safety for Your Microphone
- Do not allow the microphone or receiver to get wet.
- Do not allow the microphone to drop on the floor, bump against hard objects, or get exposed to vibrations.
- Keep away from heat sources like direct sunlight, radiators, appliances, amplifiers, etc.
- Avoid dirt, dust, and contaminants.
- Remove batteries from the microphone body when not being used to prevent damage from potential battery leakage.
- Do not throw batteries into a fire, garbage bin, or domestic rubbish. Dispose of it properly per your local ordinances.
Product Specifications
UHF Wireless Microphone
- FCC Specified Frequency Range: 902MHz ~ 928Mhz
- Available Frequency Channels Include: 902.3, 903.4, 904.70, 906.0, 907.3, 908.6, 909.9, 911.2, 912.5, 913.8, 915.1, 916.4, 917.7, 919.0, 920.3, 921.6, 922.9, 924.2, 925.5, 926.8
- FCC-ID No.: 2APNKWM900
- Modulation System: DQPSK
- Frequency Response: 60Hz ~ 16KHz
- Transmitted Power: 10 dBm
- Battery Type: 2 x AA ( 3V)
- Battery Current: < 100mA
Receiver
- Frequency Range: 902MHz ~ 928Mhz
- Receiving Sensitivity: – 105 dBm
- Battery Type: Lithium-Ion Rechargeable: 450 mAh
- Working Current: Current: <100mA
Trouble Shooting
| SYMPTOM | PROBLEM | SOLUTION |
|---|
No sound
| The microphone or receiver is OFF| Turn ON both of them
Volume setting
too low on Amplifier
| Adjust the volume on the amplifier or Karaoke machine
The microphone and receiver are not paired| Repair them (refer to below * )
Sound interference| interference comes from other wireless microphones, TV,
Microwave oven| ****
Change to another frequency
| radio … etc.|
Repair
there is no connection between the microphone and receiver, you’ll need to repair them.
- Turn off the receiver;
- Select your desired frequency by pressing the HI-LO button, then switch off the microphone;
- While holding down the power On/Off button, simultaneously press and hold the HI-LO button until the LED flashes the pairing code 915.0MHz;
- Turn on the receiver, signal indicator quickly flashes 4 times, the receiver is ready;
- Turn off the microphone, then turn it on again, pairing is completed.
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FREQUENTLY ASKED QUESTIONS
What is the Karaoke USA WM900 Professional UHF Wireless Microphone?
The Karaoke USA WM900 is a professional UHF wireless microphone system designed for vocal performances, karaoke, and presentations, known for its reliable wireless operation and sound quality.
How many microphones are included in the WM900 system?
The WM900 system typically includes two wireless microphones, allowing for dual microphone operation and duets.
Is this microphone system suitable for professional use?
Yes, the WM900 microphone system is suitable for professional applications, including live performances, karaoke events, and public speaking.
What type of microphones are included with this system?
The system typically includes handheld wireless microphones with dynamic or condenser capsules, providing versatility for different vocalists.
What is the operating range of the wireless microphones?
The wireless microphones of the WM900 system typically have an operating range of Up to 150 feet, allowing performers to move freely on stage.
Is there a display for monitoring microphone status?
Yes, the system typically includes an LCD display on the receiver unit for monitoring microphone status, including battery life and signal strength.
Can I use both microphones simultaneously?
Yes, the WM900 system allows for simultaneous use of both microphones, making it ideal for duets and group performances.
What is the frequency range of this wireless microphone system?
The WM900 system typically operates in the UHF (Ultra High Frequency) range, offering reliable wireless performance and reduced interference.
Are there adjustable microphone sensitivity settings?
Yes, the system typically includes adjustable microphone sensitivity settings, allowing you to optimize the microphone's input level for different vocalists.
Is there a mute function for the microphones?
Yes, the microphones often include a mute function, allowing performers to temporarily mute their microphones when needed.
What type of audio outputs does the receiver unit have?
The receiver unit typically includes balanced XLR and unbalanced 1/4-inch audio outputs, providing flexibility for connecting to sound systems.
What is the power source for the wireless microphones?
The wireless microphones are typically powered by rechargeable or replaceable batteries, depending on the model.
Can additional microphones be added to this system?
The WM900 system may support the addition of extra wireless microphones, allowing for more performers to join in.
Is there a warranty for the Karaoke USA WM900 Professional UHF Wireless Microphone?
Warranty coverage for the WM900 microphone system warranties often range from 6 months tu 1 year or more.
Where can I purchase the Karaoke USA WM900 Professional UHF Wireless Microphone?
You can typically purchase the WM900 microphone system from authorized Karaoke USA retailers, music stores, or reputable online marketplaces to ensure you receive a genuine product.
Is this microphone system suitable for home karaoke setups?
Yes, the WM900 microphone system is suitable for home karaoke enthusiasts looking for reliable wireless microphones and quality sound.
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