GPS Companion Features Small, lightweight design that attaches cleanly to the back of a Palm V/Vx organizer or inserts into the Springboard™ slot of a Handspring Visor. Connects directly to the organizer. No cables required. Powerful 12 parallel-channel receiver with superior tracking in any environment. Bundled with street mapping and outdoor recreation software. Automatically turns on and off through software control. Interfaces with any Palm operating system software that reads NMEA 2.1. Outputs the following NMEA 2.1 messages: GSS, GSV,RMC, GLL, GGA. Up to 10 hours of battery life on (2) AAA batteries. Does not drain power from your organizer's batteries. Pocket size: Palm model is 6.5" (h)x 3.25"(w) x 0.88" (d). Visor model is 4.75" (h)x 2.12"(w) x 1.12" (d). Lightweight: Palm model is 6.0 oz and Visor model is 4.0 oz. 32° F to 122° F operating temperature range Optional Accessories Canvas carrying case Vehicle mounting bracket 12V power cable Shipping and Handling Airborne Express 2-day Airborne Express overnight For more questions, please see the GPS Companion FAQ. All prices and specifications are subject to change without notice at any time.