The upgraded versionV3 has the same overall dimensionsas the old version, withhigher output power, theoretically longer transmission distance, and faster transmission rate. The LoRacrystal oscillator has been replaced with a temperature compensated crystal oscillator, which has stronge anti-interference performances. Lower power consumption (originally 800uA, now only around 10uA) and better performances. The new ESP32LoRa development board, which is and compact, has more advantages and has been optimized and upgraded in multiple aspects for better performances 240MHz main frequency 8Mbyte processor Xtensa 32-bit LX7 dualcore processor main control chip ESP32-S3FN8 LoRachip SX1262 : screen: 0.96inch OLED Main frequency 240MHz 8Mbyte Processor Xtensa 32-bit LX7 dualcore processor Main control chip ESP32-S3FN8 andLoRa Chip SX1262 Deep sleep less than10pA Open communication distance 2.8KM USB adapter chip Cp2102 Dualmodes Bluetoothcompatible Traditional Bluetoothcompatible and BLE Low Power Bluetoothcompatible Working 3.3-7V Working temperature -20~70 Receiver sensitivity -139dbm (Sf12125KHz) SupportWIFI Bluetoothcompatible LoRaWan Applicable to: IoTs developers and electronics enthusiasts Material: Metal colour: Silver Package Contents: 1 x Development Board 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.