High-performance MCU: Silicon Labs EFR32MG24 SoC, 32-bit 78 MHz ARM -M33 with instructions. Matter Native: Compatible with Matter over Thread and Bluetooth Low Energy 5.3, supported by Core. Excellent RF Performance: Built-in antenna with BLE range up to 50m, external UFL antenna connector. Ultra-low Power Consumption: Less than 1.95 μA in sleep mode, ideal for battery-powered projects. Rich Onboard Resources: 4MB flash memory, built-in battery charging circuit, 19 GPIOs, LEDs. On-chip Security Encryption: Dedicated security engine with its own CPU for secure vault functionality. Classic XIAO Design: Retains the classic XIAO design, measuring 21 x 17.8mm, thumb-sized, single-sided assembly, ideal for space-constrained projects like wearables. XIAO Ecosystem Compatibility: Compatible with all XIAO expansion boards and kits, including Grove expansion, CAN bus, LED matrix, visual AI sensor, circular display, module, 2 microphone array, e-paper display, mmWave sensor, LoRa module, etc. Specification: MG24-Sense Color: Black Material: PCB