· 4 L yer Circuit Bo rd: The m in bo rd PCB uses 4 l yer circuit bo rd proc, nd imped nce m tching is performed on the circuit· Filter Width: Use v ri ble filter width, d ptive noise suppr r, threshold noise suppr r, NoiseBl nker, GC nd equ lizer· 001 Chip: The ch r cteristics of the 001 chip is used, the dyn mic blocking r nge is bout 85dB· Controlling Screen B cklight: Screen b cklight c n be controlled, using sound c vity with b ss di phr· Proc r Core: The proc r core uses STM32H743 with m in frequency of 480MHz nd supports UHF UHF frequency b nds