TOPD4FRN 806TS-0330 4-channel fixed-code handheld transmitter, dual frequency 433.92 MHz and 868.35 MHz

TOPD4FRN 806TS-0330 4-Channel Fixed Code Handheld Transmitter, Dual Frequency 433.92 MHz and 868.35 MHz. This remote control is dual-band, transmitting on both 433.92 MHz and 868.35 MHz. It uses a rolling code (it is a rolling code remote) to avoid interference with other radio equipment. It is not compatible with other brands of remote controls; please ensure your remote is the same as mine before purchasing, otherwise it will not work.