(1) Operating voltage: 1.8V~3.6V, 3.3V recommended (2) Work in 433MHz band license-free use (3) High operating rate 500kbps, support 2-FSK, GFSK and MSK modulation (4) Software modifiable baud rate parameters to better meet customer requirements under different conditions of use High baud rate: faster data transmission rate. Low baud rate: stronger anti-interference and penetration ability, longer transmission distance High sensitivity (-110dBm at 1.2Kbps, 1% packet BER) Built-in hardware CRC error detection and point-to-multipoint communication address control Low current consumption (15.6mA in RX, 2.4Kbps, 433MHz) Programmable control of output power up to +10dBm for all supported frequencies Wireless wake-up function, support low-power electromagnetic wave activation, wirelessly wake up the low-power sleep state of the device support for automatic channel clearance access (CCA) before transmission, that is, the carrier listening system fast frequency change synthesizer to bring the appropriate frequency hopping system Module can be software set address, software programming is very convenient Standard DIP pitch interface for embedded applications Separate 64-byte RX and TX data FIFO Actual transmission distance of 200 meters or more in open area (depending on specific environment and communication baud rate, etc.) Material: PCB Color as shown Package Contents: 2 x module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.