This is a fixed frequency remote control with EV1527 code, 433 MHz simple pairing, is an ideal choose for controlling of garage doors, doors and other equipments. Features: Build in button battery,providing long service time. Equipped with metal buckle, beautiful and durable, protecting the buttons. 100% brand new and high quality wireless remote control. Maximum control distance up to 100 meters in the open air,low interference. 1/2/3/4 channel or 1 Button, 2 Buttons, 3 Buttons, 4 Buttons for your choice. It is just a common RF remote controller / transmitter, which works only with remote switch receiver. Specifications: Condition: 100% Brand New Material: Plastic + Metal Encode: EV1527,2262,2260,PT2264 Frequency: 433MHz Remote Control Distance: 0~100m Power Supply: Button Battery (Included) Size: 7.2*3.5*1.5cm/2.8*1.4*0.6in Package Weight: Approx. 34g/1.2oz Package List: 1 * Wireless Remote Control (Battery Included) Notes: 1. Due to manual measurement, please allow 0-1cm error. Please make sure you don't mind before bidding. 2. Because of the differences between different monitors, the picture may not reflect the actual color of the project. Thank you for your understanding. 1、Build in button battery,providing long service time. 2、Equipped with metal buckle, beautiful and durable, protecting the buttons. 3、Maximum control distance up to 100 meters in the open air,low interference. 4、1/2/3/4 channel or 1 Button, 2 Buttons, 3 Buttons, 4 Buttons for your choice. 5、It is just a common RF remote controller / transmitter, which works only with remote switch receiver.