1. Introduction
This manual provides essential instructions for the setup, operation, and maintenance of your Behringer ULTRALINK ULM300MIC Digital Wireless System. This system includes a ULM300M wireless handheld microphone and a ULM300RS single-channel receiver, designed for dedicated vocal applications and reliable wireless audio transmission.
2. Package Contents
Verify that all components are present in your package:
- ULM300M Wireless Handheld Microphone
- ULM300RS Single-Channel Wireless Receiver
3. Product Overview
The Behringer ULTRALINK ULM300MIC system offers high-performance digital wireless connectivity for clear audio transmission.

Figure 1: The Behringer ULTRALINK ULM300MIC Digital Wireless System, showing the ULM300M handheld microphone and the ULM300RS receiver.
3.1 Key Features
- High-quality microphone capsule optimized for vocal applications.
- High-performance single-channel wireless receiver.
- Digital 2.4 GHz wireless connectivity for superior sound quality.
- Maximum operating range of 200 feet (60 meters).
3.2 Components
ULM300M Handheld Microphone: Features a robust design with integrated volume controls and a power/status indicator.

Figure 2: Close-up of the ULM300M microphone showing the Power/Status LED and Volume controls.
ULM300RS Receiver: A compact unit with essential connections and indicators for power, audio signal, battery status, and wireless link.

Figure 3: Rear panel of the ULM300RS receiver, displaying the Unbalanced Out (1/4" TS), Balanced Out (XLR), DC In (5V), and Power On/Off switch.
4. Setup
Follow these steps to set up your wireless system:
- Powering the Receiver: Connect the provided 5V DC power adapter to the DC IN port on the ULM300RS receiver (Figure 3). Plug the adapter into a suitable power outlet.
- Connecting the Receiver to an Audio System:
- For balanced connections, use an XLR cable to connect the BAL OUT port on the receiver to an XLR input on your mixer or audio interface.
- For unbalanced connections, use a 1/4" TS cable to connect the UNBAL OUT port on the receiver to a 1/4" input on your mixer or audio interface.
- Powering the Microphone: The ULM300M microphone requires 1 Lithium Ion battery (not included). Unscrew the bottom part of the microphone handle to access the battery compartment. Insert the battery, ensuring correct polarity, then reattach the handle.
- Turning On the Receiver: Flip the ON/OFF switch on the rear panel of the ULM300RS receiver to the 'ON' position. The POWER LED on the front panel will illuminate.
- Turning On the Microphone: Press and hold the POWER/STATUS button on the ULM300M microphone (Figure 2) until the LED illuminates. The microphone and receiver should automatically pair, indicated by a solid green LINK LED on the receiver.
5. Operating Instructions
5.1 Basic Operation
- Power On/Off: Use the dedicated power switches on both the microphone and receiver as described in the Setup section.
- Volume Control: The ULM300M microphone features integrated volume up/down buttons (Figure 2). Adjust the microphone's output level as needed. It is recommended to set the microphone volume to a moderate level and make primary adjustments on your mixer to avoid accidental changes or feedback.
- Battery Status: The ULM300RS receiver has a BATT LED indicator. A green light indicates sufficient battery power in the microphone, while a red light indicates low battery, signaling that the microphone battery needs replacement soon. The microphone also has a POWER/STATUS LED that changes color to indicate battery level.

Figure 4: Icon representing extended battery life, indicating the system's efficiency.
5.2 Wireless Performance
The system operates on the 2.4 GHz frequency band, offering digital clarity. The maximum range is 200 feet (60 meters). For optimal performance, maintain a clear line of sight between the microphone and the receiver. Obstructions, especially large crowds or metal structures, can reduce the effective range and signal stability.

Figure 5: Graphic indicating the 2.4 GHz digital wireless technology used by the system.
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the microphone and receiver. Do not use liquid cleaners or solvents.
- Battery Replacement: Replace the microphone battery when the low battery indicator appears. Always use fresh, high-quality Lithium Ion batteries for optimal performance.
- Storage: When not in use for extended periods, remove the battery from the microphone and store the system in a cool, dry place away from direct sunlight and extreme temperatures.
7. Troubleshooting
- No Sound:
- Ensure both the microphone and receiver are powered on.
- Check that the receiver's LINK LED is solid green, indicating a successful connection.
- Verify all audio cables are securely connected between the receiver and your audio system.
- Check the volume settings on the microphone and your audio system.
- Interference or Signal Dropouts:
- Ensure a clear line of sight between the microphone and receiver. Avoid placing the receiver behind large objects, walls, or crowds.
- Move the receiver closer to the microphone.
- Minimize other 2.4 GHz devices (Wi-Fi routers, Bluetooth devices) operating nearby, as they can cause interference.
- Feedback (Squealing Sound):
- Reduce the microphone's volume or the input gain on your mixer.
- Avoid pointing the microphone directly at loudspeakers.
- Ensure the microphone capsule is properly seated within the microphone body. If it has shifted forward, gently push it back into place after unscrewing the protective mesh.
- Distortion:
- Reduce the microphone's volume or the input gain on your mixer.
- Check the microphone capsule position as described under 'Feedback'.
8. Specifications
| Feature | Specification |
|---|---|
| Model Number | ULM300MIC |
| Microphone Form Factor | Handheld |
| Connectivity Technology | Wireless (Digital 2.4 GHz) |
| Frequency Response | 2.4 GHz |
| Number of Channels | 1 |
| Signal-to-Noise Ratio | 96 dB |
| Maximum Range | 200 feet / 60 meters |
| Power Source (Microphone) | Battery Powered (1 Lithium Ion battery required) |
| Power Source (Receiver) | DC 5V, 1000mA (via power adapter) |
| Item Weight | 1.19 pounds (total system) |
| Product Dimensions (Receiver) | 5.91 x 4.69 x 1.61 inches |
| Polar Pattern | Unidirectional |
| Manufacturer | Music Tribe US |
9. Warranty and Support
For detailed warranty information and technical support, please refer to the official Behringer website or contact your local Behringer distributor. Keep your proof of purchase for any warranty claims.







