Digital RSSI function, Automatic frequency correction Automatic gain control, RF wake-up function Low voltage detection and temperature sensor Fast wake-up and frequency hopping, Highly configurable packet processing program This product is based on LoRa radio frequency, 433MHz product description Transmitting current: 120mA @ + 20dBm 90mA@+17dBm 29mA@+13dBm Working frequency: 433MHz Transmitting : + 20dBm Receiving sensitivity: -139dBm @ LoRa&62.5Khz& = 12&146bps 136dBm@LoRa&125Khz&=12&293bps 118dBm@LoRa&125Khz& = 6&9380bps 123dBm@&5Khz&1.2Kbps Frequency error: +/- 15KHz FIFO space: 64Byte 0.018K~37.5Kbps@LoRa Modulation mode: , GFSK, MSK, GMSK, LoRa TM, Interface form: SPI current: 0.2uA@ 1.5uA@IDLE Working temperature: -40-+ 85 Colour: black Material: PCB Package Contents: 1 x 433Mhz wireless module Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.