Product Name：Holyiot-22043-nRF52840 Module

Model: Holyiot-22043
Chip: Nordic nRF52840
Size: 18 * 13.5 * 2.7mm
Antenna: Ceramic Antenna
Bluetooth Version: 5.3
Communication Distance: 0 ～ 150m
TX Power：-20dBm ～+8dBm
Transmission speed: 2Mbps / 1Mbps / 500kbps / 125kbps 802.15.4: 250kbps
Processor: 64MHz 32-bit Arm Cortex-M4 with FPU
Storage size: 1MB Flash + 512KB RAM / 256KB Flash + 64KB RAM
Communication Protocol: Bluetooth / Thread / Matter / Zigbee / Bluetooth Mesh / ANT / 802.15.4 / 2.4GHz proprietary
Authentication: FCC / CE / Rohs