Pre-flashed with Meshtastic firmware: Ready to use out of the box with pre-installed Meshtastic firmware for seamless setup. Triple Power Supply Options: Supports Type-C fast charging, solar input, and Li-ion battery power for flexible deployment in various environments-ideal for outdoor and mobile applications. High Expandability: Fully compatible with the Grove ecosystem, and includes PTH headers and an SWD debugging interface for custom hardware expansion and advanced development. Processor: Nordic nRF52840 ARM Cortex-M4 with FPU runs up to 64 MHz On-chip Memory: 1 MB flash and 256 kB RAM Wireless: LoRa: Based on Wio-SX1262, supports 862-930MHz Bluetooth 5.0 GPS: L76K(GPS,BeiDou,GLONASS,QZSS) OLED Display: Size: 1.3 inch Resolution: 128 x 64 pixels Active Area(mm): L34.5mm x W23.0mm x H1.47mm Interface: 24P E-Ink Display Connector Grove Connector: UART/IIC/GPIO Plated Through Hole(PTH): UART/IIC/GPIO/Analog Soldering pads reserved for SWD Power: Type-C: 5v---1A Solar energy interface: 5v---1A Battery interface: 3.7v---1A Color: Black Material: PCB Package Contents: 1 * Wio Tracker L1 With antenna