Not sure which radio this attaches to. Has not been tested. Is over 20 years old. Wear and tear as displayed on photographs. Please do not ask any technical questions because I do not have the answers. Thank you. This product is a vintage Motorola receiver and mouthpiece with Ariel, designed for police use. It is a rare collectible item that holds historical significance in the world of police memorabilia. Ideal for collectors or enthusiasts of vintage equipment, this piece offers a unique glimpse into the past and would make a valuable addition to any police-themed collection.