Loop switcher, loop selector, A/B switching possible. No box. In addition to switching effects, it can also switch amplifiers, and has various uses such as a tuner out. Also, the built-in buffer is excellent, and it makes playing much easier when placed at the beginning of your board! No claims and no returns to prevent parts swapping. - Model name: A/B Breaker - Brand: sobbat - Year: 1997 - Power supply: DC9V/200mA - Input/Output terminals: INPUT, OUTPUT, RETURN A, RETURN B, THRU, SEND Thank you for viewing.