BOSS WL-50 wireless system, a model that provides wireless connectivity ideal for guitars and basses. Selling due to equipment replacement. No box or instruction manual. Operation confirmed as I was using it until yesterday. The transmitter was purchased new and has been used for less than a year. Please check the photos and understand that no claims or returns are accepted. - Brand: BOSS - Model: WL-50 - Type: Wireless System - Function: Transmitter only - Output: OUTPUT - Input: INPUT Thank you for viewing.