NUX B-3RC Wireless Microphone System
The NUX B-3RC is a compact wireless microphone system featuring an XLR transmitter, XLR receiver, charging case, and the NUX NDM-4 dynamic microphone. The system replaces a traditional XLR microphone cable, offering singers, presenters, and musicians greater freedom of movement during performances, interviews, livestreams, and recordings.
Suitable for dynamic microphones
The transmitter connects directly to the XLR output of a dynamic microphone. The receiver connects to a mixer, active loudspeaker, audio interface, or other suitable microphone input. In addition to the included NDM-4, the system can be used with virtually any standard dynamic microphone.
Automatic pairing
The B-3RC is designed for quick and easy use. After powering on, the transmitter and receiver automatically pair with each other. The system selects a suitable connection from six available channels. The microphone signal can also be quickly muted via the on/off button on the transmitter.
Wireless 24-bit audio
The digital 2.4GHz transmission processes the microphone signal with a resolution of 24-bit/44.1 kHz. Latency remains below 4.8 milliseconds, ensuring speech and vocals are reproduced almost instantly. With a clear line of sight, the maximum wireless range is approximately 30 meters.
Compact and lightweight
The transmitter and receiver are each only 80 mm long and weigh 36 grams. Their compact size adds hardly any weight to a handheld microphone and they can be easily taken to rehearsals and performances.
Rechargeable batteries and charging case
The transmitter and receiver each have a built-in lithium battery with a usage time of up to approximately 3.5 hours. After use, both components can be placed in the included charging case. The case has an internal 3000 mAh battery and is charged via USB-C. LED indicators show the remaining battery capacity of the transmitter, receiver, and charging case.
NUX NDM-4 dynamic microphone
The included NDM-4 is a unidirectional dynamic microphone with a cardioid pickup pattern. This means that sound is primarily picked up from the front, and ambient noise is better controlled. The frequency response of 50 Hz to 15 kHz makes the microphone suitable for vocals, speech, presentations, and general stage applications.
Key features
- Wireless XLR microphone system
- Includes NUX NDM-4 dynamic microphone
- Suitable for standard dynamic microphones
- 2.4GHz digital wireless transmission
- 24-bit/44.1kHz audio quality
- Latency of less than 4.8 ms
- Wireless range up to approximately 30 meters with clear line of sight
- Six available wireless channels
- Automatic pairing and channel selection
- Mute function on the transmitter
- Built-in rechargeable lithium batteries
- Usage time up to approximately 3.5 hours
- LED indication for battery status
- Compact and lightweight design
- Includes charging case with built-in battery
- Charging of the case via USB-C
Wireless system specifications
- Frequency band: 2.4 GHz
- Transmit power: less than 10 mW E.I.R.P.
- Audio resolution: 24-bit
- Sample rate: 44.1 kHz
- Latency: less than 4.8 ms
- Range: maximum 30 meters with clear line of sight
- THD+N: less than 0.1% at 1 kHz
- Battery capacity transmitter and receiver: 330 mAh / 3.7 V
- Usage time transmitter and receiver: approximately 3.5 hours
- Charging time transmitter and receiver: approximately 2.5 hours
- Battery capacity charging case: 3000 mAh / 3.7 V
- Charging time charging case: approximately 4 hours
- Dimensions transmitter: 80 x 24 x 24 mm
- Dimensions receiver: 80 x 24 x 24 mm
- Weight transmitter: 36 grams
- Weight receiver: 36 grams
NDM-4 microphone specifications
- Microphone type: dynamic
- Pickup pattern: unidirectional, cardioid
- Frequency response: 50 Hz to 15 kHz
- Impedance: 600 Ω ±15% at 1 kHz
- Sensitivity: -48.4 dB ±3 dB
- Dimensions: 164 x 50 x 50 mm
- Weight: 213 grams
Package contents
- NUX B-3RC XLR transmitter
- NUX B-3RC XLR receiver
- Charging case
- NUX NDM-4 dynamic microphone
- Microphone pouch
- USB charging cable
- User manual
