The U45 system includes a transmitter that connects to your audio source—typically a mixer or audio interface—and a belt-pack receiver that connects to your earphones or headphones.
The U45 delivers high-resolution 24-bit / 48 kHz audio with an exceptionally wide and smooth frequency response from 20 Hz to 20 kHz and a 107 dB signal-to-noise ratio. It offers more volume than you'll ever need and sound quality far beyond MP3—better than CD quality.
The built-in batteries in both the transmitter and receiver last up to 5 hours. They can be conveniently recharged using the included USB cable and any standard 5V USB charger. Charging takes 1.5 to 2.5 hours depending on the charger's output.
The main use is to wirelessly send a monitor mix from a soundboard to a set of headphones or in-ear monitors—for live shows, at home, or in the studio. But the U45 system is incredibly versatile!
With multiple U45 receivers, you can broadcast one signal to a group—perfect for situations where one person needs to communicate clearly in noisy environments or without disturbing others. Ideal for demos, presentations, or guided tours.
For studio musicians, wireless monitoring makes recording much more flexible—especially for those who perform and engineer at the same time.
Want to practice late at night? Route your guitar or bass signal through a multi-effects unit or modeling amp and send the output to the U45. Enjoy private, wireless monitoring while moving freely around your home.
Up to six musicians can use the U45 system simultaneously, with each transmitter providing a unique monitor mix. This makes it a great-sounding, cost-effective solution for rehearsals, recordings, or live shows. Bands can even practice quietly without PA speakers—perfect for apartments or late-night sessions.
| Wireless Type | 5.8 GHz ISM worldwide open band |
|---|---|
| Audio Frequency Response | 20 Hz – 20 kHz (-3 dB) |
| Working Range | 30.5 m / 100 ft (line-of-sight) |
| Sampling Rate | 24-bit / 48 kHz |
| Dynamic Range | 110 dB (-3 dB) |
| Signal-To-Noise Ratio | 110 dB |
| Battery Life | 5 hours |
| Delay Time | 5 ms latency, Simultaneous broadcasts on 6 channels |
| Input | XLR or mono unbalanced 1/4" TS with supplied adapter |
| Headphone Type | Provides smooth frequency response with any headphones with 3.5 mm connector |
| Dimensions (H x W x D) | Transmitter: 3.8" (100 mm) x 1.2" (30 mm) x 1.1" (28 mm) Receiver: 2.36" (60 mm) x 1.85" (47 mm) x 1.61" (41 mm) |
| Weight | Transmitter: 90 g (3.17 oz) Receiver: 118 g (4.16 oz) |
Usually arrives in 5-9 business days.
