Ex-pro, known for its high-quality shielded cables, etc. This time, it's a wireless system that has been discontinued. Wireless systems are usually installed on top of racks or amplifiers, and in some cases, a dedicated case is required. This wireless system, although slightly large, can be incorporated into a regular effects pedalboard, and is a very convenient and innovative model that also features a mute switch (tuner out)! There is no sound degradation or latency, which are common with wireless systems, and the casing is a very durable metal body. This is a very welcome specification for live guitarists who use it vigorously. It operates in the same way as a regular effector, with a DC9V center-negative adapter or 2 AAA batteries. Transmitter is also included. It is equipped with ±10dB gain control so that it can be used regardless of the instrument. In addition to low noise, it prevents over-input. The leather case with dedicated mounting hardware fits naturally with the guitar and strap, and ensures secure fixation. The channel is also a 6-channel variable specification, which also prevents channel collisions. The fact that it can be attached to the guitar with commercially available standard patch cables is also a welcome specification. There is no need for a dedicated cable, and it is easy to replace the cable if it breaks. Overall, there is a feeling of use, and there are many scratches and stains. There are no problems with use, so you can use it immediately. This product is sold as a set of the main unit, transmitter, and leather case. Cables are missing. Please use a commercially available adapter. PW-T (Transmitter) ■Type: Guitar Transmitter ■Frequency band: 800MHz B band ■Channel: B11～B16 Variable ■Power supply: AAA x 2 (60mA) ■Continuous operating time: 14 hours (alkaline) ■Dimensions: 61W x 102H x 19Dmm (main unit) ■Weight: 80g (excluding batteries) ■Accessories: Leather case for strap attachment PW-R (Receiver) ■Frequency band: 800MHz B band ■Channel: B11～B16 Variable ■Output: Output, Tuner ■Foot switch: Mute (Tuner) ■Current consumption: 175mA ■Dimensions: 118W x 61H x 161Dmm ■Weight: 780g