In open areas, the remote control distance can reach 20-80m, and the remote control distance is long. Designed with one button, it is easy to use. And the remote control distance can reach 20~80m in the open area. Widely used in remote control switch... Specifications:Condition: 100% Brand NewButton Color: Red, Black(optional)Operating Frequency: 433MHZEncode: EV1527Channel: 1 CHButtons: 1 ButtonBattery: 6V(2 * CR2016 Battery Button)(not included)Remote Control Distance: 20~80m / 65., 6~262., 4ftItem Size: Approx., 4., 5 * 4., 5 * 1., 3cm / 1., 77 * 1., 77 * 0., 51inButton Diameter: Approx., 3cm / 1., 18inPackage Weight: Approx. RX480E KT16 RF 433 Mhz Transmitter 4 Button Remote Control And Receiver Circuit Module Kit Fixed Ev1527 Decoding Learning Code 4CH Output With Learning Diy Rx480e Kt16 Smart Home Wireless Switch 433Mhz Universal Wireless Remote Control Switch DC 12V 1CH Relay Receiver Module Rf Transmitter Ev1527 Learning Code Remote Switch Momentary Toggle L RF Remote Control Features: Radio frequency wireless remote control 1-channel mini transmitter, suitable for smart homes, with a wide range of applications. Encode: EV1527. 1 Wireless Remote Transmitter. Designed with one button, it is easy to use. If you do not receive our reply within 48 hours, pls. If you are satisfied with our service, pls. Button Color: Red, Black(optional Convenient and Fast to Use: With the advantage of simple matching, it can safely and reliably modify supporting products, and the modification is convenient and fast, without wasting your time. 19gPackage Included:1 * Wireless Remote Transmitter