The TX5 is an ASK Hybrid transmitter module, which has excellent performance and is simple to use. Frequency Range: 315 / 433.92 MHz Supply Voltage: 1.8~3.6 V Output Power: 10 dBm Circuit Shape: ASK Transmitter IC Operating Temperature: -40 ~ + 85 centi degree Applicance: Car security system Remote keyless entry Garage door controller Home security Wireless mouse Automation system According to the quantity in a cardboard