Description/Features: Specifications: FLASH: 8mbyte Processor: Tensilica LX6 dual core Main control chip: ESP32 LoRa chip: SX1262 Open communication distance: 2.8KM Computing power: High 600DMIPS Dual mode Bluetooth: Traditional Bluetooth and BLE low-power Bluetooth Development environment: Perfect support for Working voltage: 3.3-7V Working temperature range: 40~90 C Receiver sensitivity: -139dbm (SD12125KHz) UDP continuous throughput: 135Mbps USB adapter chip: Cp2102 Material: ABS Color as shown Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Package Contents: 1 x ESP32 lora development board 1 x spring antenna 1 x pin arrangement 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.