Purchased in July 2025 and used a few times. Selling because it doesn't fit my equipment. The double-sided tape hasn't been used, so the back is clean. 2-channel graphic equalizer with memory function. - Model Name: EQ-200 - Brand: BOSS - Function: Graphic Equalizer - Number of Channels: 2 channels - Memory Function: Yes - Control Buttons: ON/OFF, MEMORY Thank you for looking.