Color: Black + Green - Quantity: 1 - Material: Circuit board - Working voltage: 1.9~3.6V - Standby current: 2.5uA - Receive sensitivity: Up to -100 dBm - ISM frequency: 433MHz free license - Receive / transmit mode switch time: < 650 us - Max. Transmitter power: 10mW - Transmitter mode Max. Current: <30mA - Receiver mode Max. Current: 12.2mA - Transmitter speed: 50Kbps - Communication distance: about 300m - 2-in-1 receiving and sending function - Multi-point and frequency hopping communication with 170 channels. Realize group network TDMA-CDMA-FDMA - Built-in hardware 8/16 CRC checking for simple development and reliable and steady data transmission. - Send and receive Max. 32 bytes buffer 2 / 4 / 8 / 16 / 32 bytes - Address set via software great for microcontroller use - Built-in SPI interface or via I/O port stimulation SPI. Max. SPI clock is up to 10m - Standard DIP spacing interface easy to embedded applications