--- product_id: 504408632 title: "[Upgraded] VFD Audio Spectrum Analyzer Bluetooth 5.0 Receiver 3.5mm AUX Selector (Silver)" brand: "douk audio" price: "2041 kr" currency: NOK in_stock: true category: "Douk Audio" url: https://www.desertcart.no/products/504408632-upgraded-vfd-audio-spectrum-analyzer-bluetooth-5-0-receiver-3 store_origin: NO region: Norway --- # ±3ppm ultra-precise RX8025T clock 25×15 high-res VFD spectrum display Bluetooth 5.0 for seamless wireless audio [Upgraded] VFD Audio Spectrum Analyzer Bluetooth 5.0 Receiver 3.5mm AUX Selector (Silver) **Brand:** douk audio **Price:** 2041 kr **Availability:** ✅ In Stock ## Summary > 🎵 Elevate your sound game with precision and style! ## Quick Answers - **What is this?** [Upgraded] VFD Audio Spectrum Analyzer Bluetooth 5.0 Receiver 3.5mm AUX Selector (Silver) by douk audio - **How much does it cost?** 2041 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/504408632-upgraded-vfd-audio-spectrum-analyzer-bluetooth-5-0-receiver-3) ## 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 Timekeeping:** Built-in RX8025T oscillator keeps clock accurate within 1 minute/year - • **Sleek & Compact Design:** CNC aluminum + acrylic case fits stylishly on any modern desk setup - • **Customizable Visual Experience:** Adjust brightness, gain, and peak hold with remote control for perfect ambiance - • **Next-Gen Wireless Connectivity:** Bluetooth 5.0 ensures lag-free streaming from any device - • **Crystal-Clear Audio Visualization:** High-res VFD display with 5 spectrum modes for real-time sound analysis ## Overview The [Upgraded] VFD Audio Spectrum Analyzer Bluetooth 5.0 Receiver combines a high-resolution 25×15 vacuum fluorescent display with Bluetooth 5.0 connectivity and dual 3.5mm AUX inputs. It features a precision RX8025T clock with ±3ppm accuracy, multiple customizable spectrum and clock display modes, and a sleek CNC-machined aluminum and acrylic chassis. Remote control and power-off memory enhance user convenience, making it a versatile and stylish audio accessory for professionals and audiophiles alike. ## Description Warm Tips: 1. 3.5mm AUX1 and 3.5mm AUX2 cannot input at the same time, only one audio source channel (MIC / Bluetooth / IN1 / IN2) can input at a time. Parameters: Display screen: VFD (Vacuum Fluorescent Display) Resolution: 25 × 15 Frequency range supported: 80Hz-16KHz Display item: music spectrum / clock Audio signal input: MIC / Bluetooth 5.0 / 2 groups of 3.5mm AUX Audio signal output: 1 group of 3.5mm AUX Work mode: 1. Auto mode (display music spectrum when music input, display clock mode when no music input) 2. Clock display mode (always) Clock display: 2 kinds Music spectrum display: 5 kinds Music display mode: AGC+customized output curve (Real output / Smooth output) Adjustable items: main light column falling speed / peak holding time / peak falling speed Brightness adjustment: 5 levels+auto adjustment Gain adjustment: 5 levels Power-off memory function: support Remote control: support Working voltage: DC 5V Dimensions (W*D*H): 184*75*66mm / 7.24*2.95*2.60in Net weight: 322g / 0.71lb Package weight: 500g / 1.10lb Packing List: 1× VFD253 Audio Spectrum 1× USB Cable (Type-C) 1× Remote Control 2× Pad (stick to the bottom) 1× User Manual ## 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 | | Audio Output Mode | Stereo | | Audio Output Type | Speakers | | Best Sellers Rank | #185,778 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #41 in Spectrum Analyzers | | Brand | Douk Audio | | Built-In Media | 1*audio spectrum; 1*usb cable; 1*remote | | Color | Silver | | Compatible Devices | Amplifier, Preamplifier | | Connectivity Technology | Auxiliary, Bluetooth, MIC | | Connector Type | 3.5mm Jack | | Control Method | Remote | | Controller Type | Hand Control | | Customer Reviews | 3.9 3.9 out of 5 stars (62) | | Item Dimensions D x W x H | 2.95"D x 7.24"W x 2.6"H | | Manufacturer | Douk Audio | | Mfr Part Number | VFD253 | | Model Number | VFD253 | | Number of Channels | 2 | | Number of Items | 1 | | Other Special Features of the Product | Built-In Bluetooth | | Supported Internet Services | Not Supported | | Surround Sound Channel Configuration | 2 | | Warranty Description | 18-Month Limited Warranty | | Wireless Technology | Bluetooth | ## Product Details - **Audio Output Mode:** Stereo - **Brand:** Douk Audio - **Color:** Silver - **Compatible Devices:** Amplifier, Preamplifier - **Connectivity Technology:** Auxiliary, Bluetooth, MIC - **Connector Type:** 3.5mm Jack - **Controller Type:** Hand Control - **Product Dimensions:** 2.95"D x 7.24"W x 2.6"H - **Special Feature:** Built-In Bluetooth - **Surround Sound Channel Configuration:** 2 ## Images ![[Upgraded] VFD Audio Spectrum Analyzer Bluetooth 5.0 Receiver 3.5mm AUX Selector (Silver) - Image 1](https://m.media-amazon.com/images/I/71+CwJWqKiL.jpg) ## Available Options This product comes in different **Color** options. ## 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.no/products/504408632-upgraded-vfd-audio-spectrum-analyzer-bluetooth-5-0-receiver-3](https://www.desertcart.no/products/504408632-upgraded-vfd-audio-spectrum-analyzer-bluetooth-5-0-receiver-3) --- *Product available on Desertcart Norway* *Store origin: NO* *Last updated: 2026-10-13*