Features: Four buttons LED Indicator Sliding cover Compact pocket sized Battery included 1. Type of programming: Programming with the receiver 2. Number of channels: 4 3. Code: rolling code 4. Frequency: 433.92 MHz 5. Battery: 27A 12V 6. Size: 70*30*13mm Compatible model Normstahl RCU 433 2K Normstahl RCU 433 4K Normstahl RCU433-2 Normstahl RCU433-4 Normstahl EA 433 2KS Normstahl EA 433 4KS Normstahl EA433 2KM Normstahl N002800 Please refer to your receiver's user manual. NEW Remote Programming: 1) Open the Courtesy Lamp Cover to expose the Learn" or "Code SET" button. Otherwise it is on the rear of the motor head. 2) Press the "Learn Button (* LED Indicator will glow solid) 3) Press the Remote button you want to control the door - LED indicator will extinguish 4) Press the same Remote button again - LED indicator will begin to flash rapidly, programming is complete once the LED Indicator ceases to flash 5) Close the Courtesy Lamp Cover wide range of uses: Garage doors, Electronic gates, Barrier gates, sliding doors, automatic doors, rolling doors, shutters Electrical appliances/Home automation i.e. lights, Alarm system, access control system