Nobsound AK2515 Bluetooth 5.0 MIC Pick up Audio Spectrum Analyzer VFD Sound Level Meter VU Meter Screen Display

Warm tips: For safe shipping, we package the main board and the acrylic board separately, need you to assemble it with several screws (It's very easy, don't worry). Features 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, month error within 10 seconds, very cool and interesting. Wide frequency range display & versatile input: Support 20Hz-20KHz frequency sweep, high-precision display even can do frequency point test. With AUX/BT/MIC pick-up, you can easily see every subtle change in sound. When connected to Bluetooth, the 3.5mm jack switches from input to output, allowing it to function as a Bluetooth receiver. Special AGC and spectrum algorithm & customized output curve: ensure ideal visual effects even the input signal is in a small to large range, even can switch the gain between -10/-5/-3/-1/0dB. With 3 kinds of display modes: real output / smooth output I / smooth output II, both ensure accuracy and best display effects, satisfy different usage requirements. Many adjustable items & display effects: the brightness, the falling speed of main light column, the holding time and the falling speed of the peak can be adjusted separately. Supports displaying date and time, 4 fonts, 5 music spectrum display modes, 5 clock display modes, and 3 level modes for free selection, all settings with power-off memory function, no need to set it again after restarting. Frequency division/amplification curve function and noise filtering: 5 frequency division modes can make the visual effect better; 5 amplification curve modes can suppress low-frequency or boost high-frequency. With one click noise filtering function, effectively improves the clarity of sound, and is well-adapted for use in different environments. Parameters Display screen: VFD (Vacuum Fluorescent Display) Resolution: 25 × 15 Frequency range supported: 20Hz-20KHz Display item: music spectrum / sound level / clock Audio signal input: 3.5mm AUX / MIC / Bluetooth 5.0 Work mode: 1. Auto mode (display music spectrum when music input, display clock mode when no music input) 2. Auto mode without clock display (display music spectrum when music input, enter deep sleep mode when no music input) 3. Music spectrum mode (always) 4. Clock display mode (always) Sound level display mode: 3 kinds 1. Normal mode 2. Mirror mode 1 3. Mirror mode 2 Amplification curve settings: 5 modes 1. Compressed low-frequency 2. Compressed low-frequency to enhance high frequency 3. No enlarging(default setting) 4. Slightly compression low frequency to enhances high frequency 5. Enhance high frequency Music spectrum mode: Normal mode / Invert color mode / Reverse mode / Frequency division mode / Amplified curve mode Real output / Smooth output I / Smooth output II Adjustable items: main light column falling speed / peak holding time / peak falling speed Clock display: year / month / day / hour / minute / second & date Brightness adjustment: 7 levels Font type: 4 kinds Working voltage: DC 5V Dimensions(W*D*H): 175*28*50mm / 6.89*1.10*1.97in Net weight: 189g/1.42lb Package weight: 300g/0.66lb Packing List 1× AK2515 Pro Audio Spectrum Analyzer Board 1× USB Cable (Type-C) 1× 3.5mm Audio Cable 1× 1:2 3.5mm Cable 2× Acrylic Board 1 Set × Installation Screws