Features: ERP32 with new version of REV1, support wireless Internet access and wireless Bluetooth connection. Highly configurable data packet handler that saves configuration parameter data EEPROM Down. With global positioning system, GPS module NEO-6M, 3V-5V power supply universal. Designated module with ceramic antenna, super-strong signal, support for automatic gain control and automatic frequency correction. It also features digital RSSI function, RF wake-up function, 4MB flash memory, low voltage detection and temperature sensor, fast wake-up and frequency hopping, LED signal indicator, battery with data backup. Specification: Material: PCB Latest ESP32 version: REV1 Working Voltage: 1.8-3.7V Acceptable Current: 10-14mA Emission Current: 120mA + 20dBm 90 mA + 17dBm 29 mA + 13dBm Working Frequency: 433MHz Transmit Power: +20dBm Receive Sensitivity: -139dBm LoRa and 62.5Khz&SF = 12&146bps -136dBm LoRa and 125Khz&SF = 12&293bps -118dBm LoRa&125Khz&SF = 6&9380bps -123dBm FSK&5Khz&1.2Kbps Frequency Error: ±15KHz FIFO Space: 64Byte Data Rate: 1.2K-300Kbps/FSK 0.018K-37.5Kbps/LoRa Modulation Mode: FSK, GFSK, MSK, GMSK, LoRa TM, OOK Interface Form: SPI Sleep Current: 0.2uA/SLEEP 1.5uA/IDLE Working Temperature: -40℃-+85℃ Battery Model: 1x18650(Not include) Lithium Battery Model: MS412FE (Included) Lithium Battery Capacity: 1mah Default Baud Rate: 9600 USB CP2104-GMR For SoftRF V4.0 Package List: 1 x WiFi Module 1 x Antenna 2 x Pin . Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.