This is a reissue of the "RTG," one of the most incomprehensible effectors in Electro-Harmonix history, released in 1980. It randomly generates oscillating sounds like "peep," "po," and "woo." The Rate control adjusts the interval at which the sounds change. Switching to the Glide position makes the pitch change smoothly, altering the effect. Connecting it to other effectors can create even more unique effects. Specifications: ■ Is this a guitar effector? ■ Random Tone Generator ■ Power: 9V battery (included), 9VDC power adapter (sold separately) ■ Dimensions, Weight: 72W x 110D x 50Hmm, 240g ~From the manufacturer's website~ ■ The original RTG was released in 1980 and was one of the most incomprehensible products in EHX history. As the name "Random Tone Generator" suggests, it's an instrument that simply generates random oscillating sounds like "peep," "po," and "woo." The new RTG has an LED, so you can easily see its ON/OFF status. It's also more compact than before. ■ To use it, just step on the footswitch. It will randomly generate oscillating sounds one after another. The oscillating sounds range from approximately 20Hz to 1kHz, about 5 octaves. The RATE control adjusts the time it takes for the sound to change. The interval is about 5 seconds to 0.1 seconds. Switching to the GLIDE position makes the pitch change smoothly, giving it a B-movie sci-fi feel. You must be quite the eccentric to be searching for a product like this. Connecting it to a pitch shifter, delay, volume pedal, etc., will create even stranger sounds, making it even more unclear what it's for. The box is sun-faded, but it's included. Operation has been confirmed. It has a reasonable amount of wear and tear. It's currently discontinued and a rare item that doesn't often appear on the used market. It's not even listed on Digimart... However, given what it is, it's hard to predict whether it will sell quickly or become long-term inventory. We are accepting inquiries at any time, so please feel free to contact us.