This vintage caller ID box from Cidco Incorporated is a great addition to any home telephone setup. With its beige color and compact size, it can easily blend in with any decor. Designed to work with a 3.5 mm jack, this caller ID box is perfect for those who want to see who's calling before answering the phone. Featuring caller ID functionality, this unit is sure to make your life easier by allowing you to screen calls and only answer the ones you want. The model number is JA-25/64-18. Don't miss out on this great vintage item!