The system consists of a transmitter unit, which connects to your audio source (usually a mixer or sound interface); and a bodypack receiver, into which you plug your headphones or earbuds. The U4 system features 24-bit/48kHz high-resolution audio, with a very wide, smooth frequency response between 20Hz and 20kHz, a signal-to-noise ratio of 107 decibels, and more volume than ever before. The internal battery in both the transmitter and receiver lasts 5 hours. The battery is easily charged using the included USB cable and any standard 5V USB charger; charging time varies between 1.5 and 2.5 hours, depending on the charger current used. If you have more than one U4 receiver, you can broadcast a signal to an entire group of people. If you want to practice your instrument in private (say, late at night), you can run the signal through a multi-effects unit or modeling amp, send the 1/4" or XLR output to your headphones, and move freely around the venue.
- Wireless type.
- 2.4GHz ISM open band.
- Resolution: 24bits/48kHz.
- Switchable Channels: 6.
- Simultaneous channels: 6.
- Frequency response: 20Hz–20kHz (-3dB).
- Signal-to-noise ratio 107dB.
- Monkey Signal.
- THD: 0.2%.
- Maximum latency: 5ms.
- Operating range: 27.5m (line of sight).
- Battery life: 5 hrs.
- Full charge time: 2.5 hrs.
- Charging voltage: 5V (USB).
- Usable while charging: Yes.
- Black color.
- This product has a 1-year warranty against factory defects.