433MHz Wireless Transmitter and Receiver Module ASK/OOK Chip PCB SYN115/SYN480R for Remote Control. Features compact design, optimized frequency, rapid data transfer, high sensitivity receiver, and versatile application. Specifications include onboard SYN115/F115 single chip ASK transmitter chip, module transmission frequency of 433MHz, module output power of <10dBm, and module power supply voltage of 1.8-3.6V.