This is a fixed frequency remote control with EV1527 code, 433 MHz simple pairing, is an ideal choice for controlling of garage doors, doors and other equipments.Features:Build in button battery, providing long service time.100% brand new and high quality wireless remote control.Maximum control distance up to 100 meters in the open air, low interference.It is just a common RF remote controller / transmitter, which works only with remote switch receiver.An ideal choice for controlling of garage doors, doors and other equipments.Specifications:Condition: 100% Brand NewMaterial: Plastic + MetalEncode: EV1527,2262,2260,PT2264Frequency: 433MHz Remote Control Distance: 0~100mPower Supply: Button Battery (Included)Size: 6.1*3*1.2cm/2.4*1.2*0.5inPackage Weight: Approx. 30g/1.1ozPackage List:1 * Wireless Remote Control (Button 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..3.The product is a single remote control, which needs to be used together with a receiver of the same frequency. The specific operation method depends on the receiver. It can only be used after learning and pairing with the receiver.