This is the BOSS WL-20 guitar wireless system. Operation has been confirmed. This model is equipped with a cable tone simulation function. Thank you. Below, I will paste the product description. [Product Description] BOSS/WL-20 Guitar Wireless System Features A wireless system that can be used immediately by simply connecting it to a guitar or bass. High-quality sound and stable connection are achieved with an ultra-low latency of 2.3ms. More dynamic live performances than ever before are possible. Specs BOSS / WL-20 ■ Wireless set for guitar/bass ■ Features ・A wireless system that can be used immediately by simply connecting it to a guitar, bass, or electronic instrument. ・By docking the transmitter to the receiver for about 10 seconds, the optimal wireless connection is automatically established. ・BOSS's proprietary wireless technology achieves high-quality sound and stable connection with an ultra-low latency of 2.3ms. (Transmission range: 15m) ・Easily rechargeable with a general-purpose USB adapter (5V/500mA or more) ・Cable tone simulation that reproduces the natural sound changes when using a 3m guitar cable.