Self Copy. This is a clone remote control, it must clone from the remote control. If your remote control is not working, then this product would not suitable for you. 433.92MHz can accurately respond to your commands without any delay. Fixed Code - ensures a high degree of security. Your garage door can only be controlled by this specific remote. Battery: Included - you don't need to buy any extra battery for this remote. Buttons: gives you the ability to control up to two different garage doors. Working voltage: DC6V (2016 button battery) Working current: 12MA Working frequency: 433MHZ Transmitting power: 10MW Launch distance: 50-100 meters (open space) Frequency deviation:0.2MHZ Transmission rate: 50--60KHZ Working temperature: -20C~70C Storage temperature: -10C~50 Humidity: below 85% size: 6.5 x 3.5 x 1 cm Material: plastic colour: black Package Contents: 1 x Controller 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.