Behringer ULM300LAV
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Behringer
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ULTRALINK ULM300LAV: A Behringer Solution Designed to Democratize Wireless Lavalier Microphones
With the ULTRALINK series, Behringer focuses on accessible wireless systems designed to facilitate speaking without cable constraints. The ULM300LAV fits this approach: a compact set optimized for voice, aiming for a fast workflow (setup, pairing, connection) while maintaining the necessary outputs to integrate into various audio environments.
Who Is It For and What Are Its Uses?
The Behringer ULM300LAV is intended for speakers who need intelligible and stable voice sound: hosts, lecturers, trainers, places of worship, corporate presentations, simple recordings, or small stages. The lavalier microphone is discreetly placed on a collar or lapel, while the belt transmitter is securely attached with its clip to maintain natural gestures and free posture.
Performance, Connectivity, and Everyday Comfort of Use
2.4 GHz Digital Transmission: Stability and Clarity for Speech
The ULM300LAV operates on the 2.4 GHz ISM band and uses encrypted digital transmission. The goal is to maintain a clean and detailed signal, with an advertised uncompressed encoding and a resolution of 24 bits / 48 kHz. The frequency response (100 Hz to 15 kHz) is voice-oriented: it prioritizes intelligibility and presence rather than the very low extension typical of stage microphones for instruments.
Automatic Pairing and Indicators: Quick Start-Up
The configuration is designed to be straightforward: the ULM300BP transmitter automatically pairs with the ULM300RL receiver. The LEDs on the receiver's front panel facilitate monitoring (signal presence/strength), and the indicators on the transmitter help anticipate battery replacement, a real advantage during events, conferences, or services.
Versatile Outputs: Easy Integration in Sound Systems and Installations
On the connectivity side, the receiver offers a balanced XLR output for mixers and sound reinforcement systems, as well as an unbalanced 6.35mm Jack output for simpler inputs (certain room installations, amplifiers, or audio equipment). The lavalier microphone input on the transmitter uses a balanced 6.35mm TRS Jack connector, convenient for a reliable connection between the lavalier mic and belt pack.
Technical specifications
| Category | Complete system |
| Directivity | cardioid |
| Capsule | static |
| Microphone Configuration | Cardioid |
| Dynamic Range | 95 dB A-weighted |
| Equivalent Input Noise | -105 dBV unweighted at 12 dB gain, 600 ohms |
| Frequency Response | 100 Hz - 15 kHz, +0/-3 dB |
| Sampling Frequency | 48 kHz |
| Resolution | 24 bits |
| Encoding | Uncompressed |
| Latency | 14 ms |
| RF Frequency | 2.4 GHz ISM band (2408.5-2475.5 MHz, 16 channels) |
| RF Output Power | less than 18 dBm (64 mW) |
| Operating Range | approximately 30 m (100 feet) line of sight |
| Lavalier Microphone Input (transmitter) | Balanced 6.35mm TRS Jack |
| Audio Outputs (receiver) | Balanced XLR and Unbalanced 6.35mm TS Jack |
| Battery Type | 2 x AA |
| Battery Life | minimum 4 hours |
| External Adapter | 5 V DC, 1000 mA, center-negative |
| Power Consumption | 1 W |
| ULM300BP | 33 x 63 x 83 mm |
| ULM300RL | 41 x 150 x 119 mm |
Questions frequently asked
What is the range of the Behringer ULM300LAV wireless system?
The advertised range is approximately 30 m in line of sight on the 2.4 GHz ISM band. Obstacles and radio interference can reduce this distance.
Can the receiver be connected to a mixing console?
A balanced XLR output allows connection to a mixing console or a sound system. An unbalanced 6.35 mm TS jack output is also available.
What battery life does the beltpack transmitter offer?
The ULM300BP transmitter operates on 2 AA batteries with a minimum advertised battery life of 4 hours.
Is the lavalier microphone suitable for spoken voice?
The frequency response from 100 Hz to 15 kHz is focused on vocal intelligibility. The cardioid condenser capsule helps to favor the source placed in front of the microphone.
How is pairing done between the transmitter and the receiver?
The ULM300BP transmitter automatically pairs with the ULM300RL receiver. LEDs on the receiver indicate the presence and strength of the signal. The indicators on the transmitter also provide information about the battery status.



