Digital RSSI function, Automatic frequency correction Automatic gain control, RF function Low voltage detection and temperature sensor Fast and frequency hopping, Highly configurable packet processing This product is based on LoRa radio frequency, 433MHz product description mitting current: 120mA @ + 20dBm 90mA@+17dBm 29mA@+13dBm Working frequency: 433MHz mitting power: + 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 space: 64Byte 0.018K~37.5Kbps@LoRa Modulation mode: , GFSK, MSK, GMSK, LoRa TM, Interface form: SPI Sleep current: 0.2uA@SLEEP 1.5uA@IDLE Working temperature: -40-+ 85 Colour: black Material: PCB Package Contents: 1 x 433Mhz wireless module Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.