This is the EMP100, a digital multi-effects processor made by YAMAHA. It can add a variety of effect sounds to sound sources such as guitars, keyboards, and mixers. Features: * Compact 1U half-rack size * Equipped with 8 effect modes (reverb, delay, chorus, pitch change, etc.) * 1 in 2 out (mono input, stereo output) specifications. * Bypass function, foot switch terminal (foot switch not included) ⚙️ Condition This is a used item. 【Operation Check】 We have confirmed that the power can be turned on. (Supplement) Due to the nature of used items, we cannot guarantee the operation of all effects, sound output, or the normal function of each button and knob. The exterior may have scratches, scuffs, and dirt associated with normal use. Please check the images. Since there is no mention of accessories, this item will be sold with the main unit only. (Please check for the presence of a power adapter and cables) ⚠️ Notes Returns and exchanges are not accepted after purchase. Please understand that this is an old, used device before purchasing. For detailed specifications and operating instructions, please refer to the instruction manual PDF on the official website below. YAMAHA EMP100 Instruction Manual https://jp.yamaha.com/files/download/other_assets/7/323117/EMP100J.pdf