1) Frequency : 433.92MHz 433MHz 2) Code : Fixed code 3) Buttons : 4 4) This is a third party remote control. Duplicate Your Existing Remote Controllers so you always have a backup: 1.Vehicle central locking systems 2.Garage doors 3.Electronic gates 4.Electrical appliances/Home automation lights 5.Car sunroofs 6.Car/Motorbike alarms Clone up to 4 remote signals from 4 different remotes! With this remote cloner you can clone all 433.92MHz fixed code key fobs. Note: rolling code remotes not work. How to Program - it's easy! Face to face copy your original remote control Step:1:Clear the history code from duplicator 1: button A and B continuously until LED flash 3 times 2.Release button B (Keep pressing button A),and button B Slowly for 3 times,LED flash 3.Release button "A",finish code clearance. ,Copy code from original transmitter 1.Put duplicator of original transmitter,as close as possible. 2. and hold button A of original transmitter,then and hold button A of duplicator see the duplicator's LED flash 3.Release both buttons,finish code copy,copy other button in same way. Button A = Lock button Button B = Unlock button Colour:Black Material:plastic Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Package Contents: 1 * Electric 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.