This is a digital delay effects unit with various settings and presets that can be registered. It's recommended for spatial and technical playing with detailed nuances. I purchased it about 10 years ago. Operation has been confirmed. Velcro for mounting on an effects board is attached to the back. Please refrain from purchasing if this is a concern. A power adapter and the original box (in decent condition) are also included. - Brand: t.c. electronic - Model Name: Nova Delay - Function: Delay effect - Included Accessories: Power adapter - Condition: Original box included Thank you for viewing.