Douk Audio VFD253 3.5mm AUX Switcher Box VFD Audio Analyser Bluetooth 5.0 Receiver Home Desk Clock–Audio Solution in Bangladesh

The Douk Audio VFD253 is a multifunctional desktop device that combines a 25 × 15 resolution VFD (Vacuum Fluorescent Display) music spectrum analyzer, a Bluetooth 5.0 receiver, an audio switcher, and a high-precision digital desk clock.

 

Core Features

• Music Spectrum Analyzer: Visualizes audio frequencies in real time using a distinct green VFD screen. It features custom AGC (Automatic Gain Control) technology to ensure vivid displays even at low volumes, plus multiple display and sensitivity modes.

 

• High-Precision Clock: Utilizes the RX8025T built-in crystal oscillator, keeping highly accurate time with an error of less than one minute per year.

 

• Audio Switcher & Bluetooth 5.0: Features two 3.5mm AUX inputs and one 3.5mm AUX output. It also functions as a Bluetooth receiver, letting you stream audio wirelessly to your existing amplifiers or speakers

 

 

Technical Specifications

• Display Resolution: 25 × 15 dot matrix
• Frequency Range: 80 Hz to 16 KHz
• Audio Inputs: Built-in MIC pickup, Bluetooth 5.0, 2 × 3.5mm AUX
• Audio Outputs: 1 × 3.5mm AUX
• Operating Modes: Auto mode (switches between music spectrum and clock) or Clock-only mode
• Power Supply: DC 5V (USB-C powered)
• Dimensions: 184 × 75 × 66 mm

 

Design and Controls

The VFD253 is built with a compact yet attractive housing and comes with an included remote control that allows you to easily adjust brightness, gain, falling speeds, and display configurations

 

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.

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 (without batteries)
• 2× Pad (stick to the bottom)
• 1× User Manual