Master Chip:ESP32-S3FN8 (Xtensa®32-bit lx7 dual core processor) LoRa Chipset:SX1262 GNSS Chipset:UC6580 Frequency:433~510MHz, Max. TX Power:21±1dBm Max. Receiving Sensitivity:-139dBm Wi-Fi:802.11 b/g, up to 150Mbps Bluetooth LE:Bluetooth 5,Bluetooth mesh Hardware Resource:7 x ADC1 + 2 x ADC2; 7 x Touch;3 x UART;2 x I2C; 2 x SPI; etc. Interface:Type-C USB;2 x 1.25 lithium battery interface;LoRa ANT(IPEX1.0);2 x 18 x 2.54 Header Pin Battery:3.7V lithium battery power supply and charging Operating Temperature:-20 ~ 70 ℃ Color: As Shown Material: Electronic Component Package Contents: 1 x tracker with unsoldered pin header 1 x 433-510mhz antenna 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.