---
product_id: 606697897
title: "Douk Audio [Upgraded] VFD Spectrum Analyzer Bluetooth 5.0 Receiver 3.5mm AUX Selector"
brand: "douk audio"
price: "HK$1691"
currency: HKD
in_stock: true
url: https://www.desertcart.hk/products/606697897-douk-audio-upgraded-vfd-spectrum-analyzer-bluetooth-5-0-receiver
store_origin: HK
region: Hong Kong
---

# ±3ppm clock accuracy 25x15 VFD display Bluetooth 5.0 connectivity Douk Audio [Upgraded] VFD Spectrum Analyzer Bluetooth 5.0 Receiver 3.5mm AUX Selector

**Brand:** douk audio
**Price:** HK$1691
**Availability:** ✅ In Stock

## Summary

> 🎉 Elevate Your Audio Experience!

## Quick Answers

- **What is this?** Douk Audio [Upgraded] VFD Spectrum Analyzer Bluetooth 5.0 Receiver 3.5mm AUX Selector by douk audio
- **How much does it cost?** HK$1691 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/606697897-douk-audio-upgraded-vfd-spectrum-analyzer-bluetooth-5-0-receiver)

## 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

- • **✨ Sleek & Stylish:** Crafted from CNC machined aluminum and transparent acrylic, this compact design not only saves space but also elevates your decor.
- • **⏳ Precision Timing:** Stay on schedule with a high-precision clock that boasts an impressive accuracy of ±3ppm, ensuring you’re always on time.
- • **🎶 Visualize Your Sound:** Experience music like never before with a stunning 25x15 high-resolution VFD display that brings your audio spectrum to life.
- • **📱 Seamless Connectivity:** Enjoy the freedom of Bluetooth 5.0 and dual 3.5mm AUX inputs, making it compatible with all your devices—phones, PCs, and more.
- • **🎛️ Customizable Experience:** Tailor your audio experience with adjustable gain, brightness, and display effects, all saved with power-off memory for convenience.

## Overview

The Douk Audio VFD Spectrum Analyzer is a multifunctional device that combines a high-resolution audio spectrum analyzer, Bluetooth 5.0 receiver, and a precise clock. With its customizable display settings and sleek design, it enhances both your audio experience and your living space.

## Description

Douk Audio

## Features

- VFD253 integrates mutiple functions into a whole: As an audio spectrum analyzer: adopts dedicated green VFD display screen with 25 × 15 high resolution, guarantee the accuracy of each frequency band. As a Bluetooth receiver and audio switcher: besides microphone pickup, also with Bluetooth 5.0 and 2 groups of 3.5mm AUX input, works perfectly with your phone/PC/game player/amplifier/speaker etc. As a high-precision clock: using RX8025T built-in crystal oscillator whose clock accuracy is ±3ppm, year error within 1 minutes, very cool and interesting.
- Wide frequency range & special AGC display: 80Hz-16KHz frequency sweep, high-precision display even can do frequency point test. Speical AGC algorithm and customized output curve, ensure ideal visual effects even the input signal is in a small to large range, avoid that no display when input low and display in full screen when input high.
- Many adjustable items & display effects: gain, brighntness, falling speed of main light column, holding time and falling speed of the peak can be adjusted separately. 5 music spectrum display mode and 2 clock display mode, all settings with power-off memory function, no need to set again after restarting.
- Attractive looking and convenient use: with remote control, easy to adjsut all settings and see the music level status in real time and every slight change of sound.CNC machined aluminum and transparent acrylic case, both solid and beautiful, compact design not occupy your desktop space.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BKQ1K551 |
| Best Sellers Rank | #218,496 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #55 in Spectrum Analyzers |
| Customer Reviews | 4.3 4.3 out of 5 stars (53) |
| Date First Available | October 27, 2022 |
| Item Weight | 1.21 pounds |
| Item model number | VFD253 |
| Manufacturer | Douk Audio |
| Product Dimensions | 2.95 x 7.24 x 2.6 inches |

## Product Details

- **Brand:** Douk Audio
- **Connectivity technology:** Auxiliary, Bluetooth, USB
- **Controller type:** Hand Control
- **Special features:** Built-In Bluetooth, Music Streaming
- **Compatible devices:** Smartphone, Speaker

## Images

![Douk Audio [Upgraded] VFD Spectrum Analyzer Bluetooth 5.0 Receiver 3.5mm AUX Selector - Image 1](https://m.media-amazon.com/images/I/71+CwJWqKiL.jpg)

## Questions & Answers

**Q: Is the remote IR?**
A: Yes

**Q: How does the bluetooth feature work, if my speakers are blue tooth ... I normally use my phone and have edifier speakers. Android cancelled dual bt..?**
A: Hello. Its Bluetooth is only for receiving. You can connect your phone with this device via Bluetooth. And then use wire to connect this device to your edifier  active speakers.

**Q: How is the mic pickup? Does it work well...**
A: The mic pickup is surprisingly good.

## Frequently Bought Together

- [Upgraded] VFD Audio Spectrum Analyzer Bluetooth 5.0 Receiver 3.5mm AUX Selector (Silver)
- CableCreation 3.5mm to RCA Cable, Angle 3.5mm Male to 2RCA Male Auxiliary Stereo Audio Y Splitter Gold-Plated for Smartphones, MP3, Tablets, Speakers, Echo Dot, Home Theater, HDTV, 10FT/3M
- Tan QY 2RCA to 2RCA Cable 3Ft, Gold-Plated 2 RCA Male to 2 RCA Male Stereo Audio Cable for Home Theater, HDTV, Gaming Consoles, Hi-Fi Systems (3Ft/1M)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.hk/products/606697897-douk-audio-upgraded-vfd-spectrum-analyzer-bluetooth-5-0-receiver](https://www.desertcart.hk/products/606697897-douk-audio-upgraded-vfd-spectrum-analyzer-bluetooth-5-0-receiver)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-16*