Lester K, a stereo rotary speaker effect with a variety of controls such as volume and drive. Functionality confirmed. Box (dents, sticker removal marks) and leaflets included. Velcro attached to the back. Some signs of use. - Brand: electro-harmonix - Model Name: Lester K - Function: Stereo rotary speaker effect - Controls: Volume, Drive, Slow, Fast, Balance - Accessories: Original box, instruction manual - Input/Output: Mono/stereo input, mono/stereo output Thank you for viewing.