Arkon Networks Parafone Cordless Phone Springboard Module for Handspring Visor 900 MHz analog phone handset Springboard module with base Make a call simply by tapping on number in Visor's Address Book Instantly transfer received call numbers into Address Book Caller ID with call waiting capability; 50-number speed dialing, 1,000 call history Compatible with Visor, Visor Deluxe, Visor Prism, Visor Platinum, and Visor Edge (see product description for details)