Feature: 1. With complete WiFi and for Bluetooth protocol, measured communication distance in open area is 3.6KM (packet loss rate ‑0.3%) 2. The thin, light and compact new model has more advantages, and has better performance after being optimized and upgraded in many aspects. 3. The development board has a thin and petite body, and his application can be seen in multiple scenes and various smart scenes. 4. Great workmanship, can perfectly meet your needs, with good performance 5. With strict quality control and quality assurance, can be used with peace of mind Specification: Item Type: Development Board Specification: Main Frequency: 240MHz FLASH: 8Mbyte Processor: For Tensilica LX6 dual-core Main Control Chip: ESP32 LoRa Chip: S×1276 Support Frequency Band: 868-915MHz Open Communication Distance: 3.6KM High Computing Power: 600DMIPS Dual-mode for Bluetooth: Traditional for Bluetooth and BLE for Bluetooth low energy Operating Voltage: 3.3~7V Operating Temperature Range: -40~90℃ Receiver Sensitivity: -139dbm (SD12, 125KHz) UDP Ruler Continuous Throughput: 135Mbps Support Mode: Sniffer, Station, softAP And Wifi Direct. Package List: 1 x Development Board Sx1276 Esp32 Chip 1 x Pin Sticker1 x Pin Header1 x Antenna2 x Washer