1. Model:SMG-2024 2. Type of programming:Programming with the receiver 3. Frequency:433.92MHz 4. Code:Rolling Code 5. Buttons:4 6. Woring Range:30m-100m (open space) 7. Battery:Include Battery Security of use:dynamic code provides a high level of security, non-copyable code. Only Compatible with : C940 433.92MHz C943 433.92MHz C945 433.92MHz CM128 433.92MHz CM842 433.92MHz CM844 433.92MHz E940M 433.92MHz E945M 433.92MHz E950M 433.92MHz 2.0Type 433.92MHz TX2EV 433.92MHz TX4EV 433.92MHz TX2EVS 433.92MHz TX4EVS 433.92MHz TX2REV 433.92MHz TX4REV 433.92MHz TX4UNI 433.92MHz TX4RUNI 433.92MHz TX4UNIS 433.92MHz Colour:black Material:plastic Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 1 * Garage Door Remote Control Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.