This product is a 12V wireless relay switch module with a single channel remote control transmitter receiver. It is designed for use with cars, garage doors, and gates, with a receiving sensitivity of over 97dbm. The module has a sleek black design and operates on 433MHz RF frequency. This 2-button remote control unit is perfect for controlling various devices in any room, offering convenience and flexibility for your smart home setup. Made in China, this unit is a reliable and efficient solution for your home automation needs.