Designed for band rehearsals and live performances, prioritizing the best possible STEREO experience. While B-7PSM may not be suitable for personal silent practice. Since you maybe hear some distortion and hiss sound in personal silent practice. Please consider about this issue before purchasing. Stereo Audio Transmitter, 5.8GHz Frequency B-7PSM is a wireless personal in-ear monitor system with automatic RF environment scan, 5.8GHz interference-free broadcasting frequency, and 24-bit / 40 kHz high-quality STEREO audio transmitting. From any position. On any stage. Hear every note in detail with NUX B-7PSM in-ear monitoring system. It quickly finds a clean wireless channel and automatically assigns it. The B-7PSM offers a super low latency of less than 5.5ms and has an operation range of 100 feet (30m) when unobstructed between the Receiver (RX) and Transmitter (TX). Easy to Use Just turn ON both wireless units (TX & RX), then it will be paired within a couple of seconds. A Loud Stereo Phone Preamp Plug in the TX to a mixer and turn on the TX (LED indicator will show GREEN.) Then connect your in-ear buds with the RX, turn on the RX. STEREO IEM - mono environment Use a 1/4" MONO to 1/8" STEREO adapter.then you can get a mono signal that can be heard in both the left and right channels. Clip-On Design The RX’s clip design can easily fit to your shirt, belt, or guitar strap.