This Allstar 190-108794 / 9921T is a one button, single channel, remote control transmitter with visor clip
Compatible with the following units: AD921, AD9921, ADX921 and ADX9921 remote controls.
Compatible with following receivers: AD921, AD9921, ADX921 and ADX9921 receivers.
Features
Compatible with Allstar and MVP receivers
Visor mounting clip supplied
Power: 9-volt battery
Codes: 512 (set by nine binary dip switches)
RF frequency: 318 MHz
Dimensions: 2.25" W x 4.625" H x 1" D
Linear Part number: 190-108794