For DOORHAN TRANSMITTER 2 / 4 Garage Door Remote Control, For DOORHAN TRANSMITTER 2

1. Number of channels: 4
2. Code: scroll code
3. Frequency: 433 MHz
4. Battery: CR2032 button battery
5. For DOORHAN TRANSMITTER 2 / TRANSMITTER 4 / TRANSMITTER -2 PRO / TRANSMITTER -4 PRO