Check the listing for details. Linear DNT00026 Mini-T Lady Bug 1 Button Remote Transmitter 310MHz 8 Dip Switch. Condition: New. Listed at 21.50 USD. Linear DNT00026 Mini-T Lady Bug 1 Button Remote Transmitter 310MHz 8 Dip Switch Miniature key ring transmitter, black case, white button, key ring supplied, test/operate LED, 256 selectable codes. Features Activates one Delta-3 receiverTest/operate LEDKey ring suppliedPower: 12 V batteryFrequency: 310 MHzCodes: 256 (set by dip switches)Dimensions: 2.2 x 1.42 x .66 inches The Linear LB-B remote is directly compatible with the following models 310MHz: Carper: CX-310.Linear Delta-3: DT, DTA, DTC, LB-B, Mini-T, Ladybug, DT2A, DT3+1, DT4A.Not all compatible models may be listed Product Features: Activates one Linear Delta-3 or Moore-O-Matic code switch receiver on 310MHzTest/operate LEDKey ring suppliedOne-Year manufactures warranty