This product is a selection of random electronics parts and pieces, ideal for repair or as spares. Includes 1 bread board. The unit type is unspecified, but it likely includes a variety of components such as circuit boards, resistors, transistors, infra red, magnetic sensors, LEDs to cater to different repair or project needs. This wholesale job lot of electronics parts is perfect for hobbyists or professionals looking to source specific components for their projects. With a mix of parts and pieces included, this item offers flexibility and convenience for those in need of electronics supplies. All parts from old electronics projects. Not tested