23 Jul Bluetooth 5.0 Audio Spectrum MIC Pickup VFD Sound Level Meter Display w/ AGC
Accurate music spectrum analyzer & clock display: adopts dedicated VFD display screen with 25 × 15 high resolution, guaranteeing the accuracy of each frequency band. Also with a high-precision clock display, using SD3078 built-in crystal oscillator which can ensure that the clock accuracy is ±3.8ppm,...