---
product_id: 639026526
title: "Plastic Nobsound Music Spectrum Audio 15 Level Indicator VU Meter Screen Amplifier VFD LED Display (PJ454)"
brand: "douk audio"
price: "9919836₫"
currency: VND
in_stock: true
url: https://www.desertcart.vn/products/639026526-plastic-nobsound-music-spectrum-audio-15-level-indicator-vu-meter
store_origin: VN
region: Vietnam
---

# ±3.8ppm ultra-precise clock 20Hz-20KHz frequency range 25×15 high-res VFD display Plastic Nobsound Music Spectrum Audio 15 Level Indicator VU Meter Screen Amplifier VFD LED Display (PJ454)

**Brand:** douk audio
**Price:** 9919836₫
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate your sound game with precision and style — don’t just listen, visualize!

## Quick Answers

- **What is this?** Plastic Nobsound Music Spectrum Audio 15 Level Indicator VU Meter Screen Amplifier VFD LED Display (PJ454) by douk audio
- **How much does it cost?** 9919836₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/639026526-plastic-nobsound-music-spectrum-audio-15-level-indicator-vu-meter)

## Best For

- douk audio enthusiasts

## Why This Product

- Trusted douk audio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Visualizer:** Experience crystal-clear 25×15 VFD display for every frequency band with unmatched accuracy.
- • **Full-Spectrum Mastery:** Seamlessly covers 20Hz-20KHz range, capturing every subtle audio nuance via AUX or MIC input.
- • **Adaptive Display Modes:** Choose from 3 sound level modes and 5 spectrum styles to match your vibe and environment.
- • **Smart Clock Integration:** Built-in ultra-precise clock with multiple display fonts and power-off memory keeps you on time and in style.
- • **Customizable Audio Dynamics:** Fine-tune gain, brightness, peak hold, and noise filtering for a personalized, flawless visual soundscape.

## Overview

The Douk Audio Nobsound PJ454 is a sleek, high-resolution VFD music spectrum analyzer and clock display, supporting a full 20Hz-20KHz frequency range. Featuring multiple customizable display and amplification modes, it offers wired and wireless input options with 3.5mm AUX and MIC, precise clock functionality, and advanced noise filtering — perfect for audiophiles and professionals craving real-time, visually stunning audio feedback.

## Description

Plastic Nobsound Music Spectrum Audio 15 Level Indicator VU Meter Screen Amplifier VFD LED Display (PJ454)

## 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 enWide frequency range display & 3.5mm AUX/MIC input: support 20Hz-20KHz frequency sweep, high-precision display even can do frequency point tesure that the clock accuracy is ±3.8ppm, month error within 10 seconds, very cool and interesting.
- Wide frequency range display & 3.5mm AUX/MIC input: support 20Hz-20KHz frequency sweep, high-precision display even can do frequency point test. With a 3.5mm AUX and sensitive MIC pick-up, perfectly achieve wired and wireless connections, you can easily see every subtle change in sound.
- 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Voltage | 5 Volts (DC) |
| Manufacturer | Nobsound |
| Maximum Supply Voltage | 5 Volts |
| Minimum Supply Voltage | 5 Volts |
| Mounting Type | Surface Mount |
| Brand | Douk Audio |
| Number of Channels | 2 |
| Package Type Name | box |
| Specification Met | FCC |
| Material | Plastic |
| Country of Origin | USA |
| Model number | PJ454_US |
| Colour | PJ454 |
| Item Weight | 299 g |
| Package Dimensions | 19.81 x 14.3 x 4.09 cm; 299 g |
| Item model number | PJ454_US |
| Are batteries included? | No |

## Product Details

- **Voltage:** 5 Volts (DC)
- **Manufacturer:** Nobsound
- **Maximum Supply Voltage:** 5 Volts
- **Minimum Supply Voltage:** 5 Volts
- **Mounting Type:** Surface Mount

## Images

![Plastic Nobsound Music Spectrum Audio 15 Level Indicator VU Meter Screen Amplifier VFD LED Display (PJ454) - Image 1](https://m.media-amazon.com/images/I/81XOG0NpT7L.jpg)

## Questions & Answers

**Q: Is this plug and play unit?**
A: Hello. Yes. It is a finished product. You only need to connect signal input and power input.

**Q: The clock is very annoying! Any way to disable it, so it only acts as a spectrum display? Thanks**
A: Disconnect from headphone jack when not in use.

**Q: when plugged in to a audio source, Ii have 2 or 3 bars flickering like there picking up some interference. any solutions?**
A: Got something similar happening with many bands even when there is minimal audio input. The problem appears to be a poor connection between the 1/8" plug and the socket on the analyser. What I have done is remove the plug, clean it, re-insert it and check. If that doesn't immediately solve the issue, I twist the plug in the socket until I get it to a position that zero input registers nothing on the analyser.

**Q: What are the unit's dimensions?**
A: 7"  x  2"   x 1"

## Frequently Bought Together

- Nobsound AK2515 Pro Audio Spectrum Analyzer with VFD Display, MIC Input & Advanced AGC - Precise Sound Level Meter for Musicians and Audio Enthusiasts
- Amazon Basics 3.5mm Stereo Aux to 2 x RCA Audio Cable Adapters, 4 Feet/1.2 m, for Connecting Amplifiers, Speakers, with Gold-Plated Plugs, Black

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**Shop now:** [https://www.desertcart.vn/products/639026526-plastic-nobsound-music-spectrum-audio-15-level-indicator-vu-meter](https://www.desertcart.vn/products/639026526-plastic-nobsound-music-spectrum-audio-15-level-indicator-vu-meter)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-04*