Check the listing for details. AK2515 VFD Music Audio Spectrum Mini Dot Matrix Level Indicator VU Meter Screen. Condition: New. Listed at 55.24 USD. Accurate music spectrum analyzer & clock display: adopts dedicated VFD display screen with 25 × 15 high resolution, guarantee the accuracy of each frequency band. Also with high-precision clock display, using SD2405AL built-in crystal oscillator which can ensure that the clock accuracy is ±5ppm, year error within 2.5 minutes, very cool and interesting. Wide frequency range display & 3.5mm AUX input: support 32Hz-16KHz frequency sweep, high-precision display even can do frequency point test. Works perfectly with your phone/PC/game player or other audio devices via 3.5mm AUX connection, easily to see the music level status in real time and every slight change of sound can be shown visually. 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Sign Up Now ! AK2515 VFD Music Audio Spectrum Mini Dot Matrix Level Indicator VU Meter Screen Item description This product is located in USA Warehouse, 1-6 bz days can reach most USA regions. Warm tips: 1. This is the latest upgraded version of AK2515, release on Nov. 2021, all display will better than before and add auto display mode. 2. 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, guarantee the accuracy of each frequency band. Also with high-precision clock display, using SD2405AL built-in crystal oscillator which can ensure that the clock accuracy is ±5ppm, year error within 2.5 minutes, very cool and interesting. Wide frequency range display & 3.5mm AUX input: support 32Hz-16KHz frequency sweep, high-precision display even can do frequency point test. Works perfectly with your phone/PC/game player or other audio devices via 3.5mm AUX connection, easily to see the music level status in real time and every slight change of sound can be shown visually. Speical AGC algorithm & 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 signal and display in full screen when input high. With 3 kinds of display mode: 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 brighntness, the falling speed of main light column, the holding time and the falling speed of the peak can be adjusted separately. 5 music spectrum display mode and 2 clock display mode for free choice, and all settings with power-off memory function, no need to set again after restarting. Parameters Display screen: VFD (Vacuum Fluorescent Display) Resolution: 25 × 15 Frequency range supported: 32Hz-16KHz Display item: music spectrum / clock Audio signal input: 3.5mm AUX 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) Music spectrum display : 5 kinds1. Only peak ( two rows)2. Only peak ( three rows)3. Main light column+ peak (move up)4. Only main light column5. Main light column+ peak (disappear) Music display mode: AGC+customized output curveReal output / Smooth output I / Smooth output II Adjustable items: main light column falling speed / peak holding time / peak falling speed Clock display: year / month / date / hour / minute / second Brightness adjustment: 7 levels 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 Audio Spectrum Analyzer Board 1× USB to DC power Cable 1× 3.5mm Audio Cable 1× 1:2 3.5mm Cable 2× Acrylic Board 1 Set × Installation Screws Payment Fast Shipping Return Policy About us Contact us Payment Safe and secure payment by PayPal. Fast Shipping The items are located in US, and will be shipped within 1 working day, 2-6 working days to deliver. Return Policy Free Return Within 30 Days We provide free return with 30 days for all items you bought on eBay, full refund and return shipping will be provided. 1-year warranty is provided for all items(Excluding: 1. Man-made damage or misuse. 2. Audio accessories and consumables such as vacuum tubes). If you are satisfied with our products and service please leave a 5-star . Feedback is very important to us just like our lives, please DO contact us before you leave a neutral or negative feedback, we will provide better solutions until you are satisfied. About us Douk Audio / Nobsound Studio was founded in 2013 in Shenzhen CHINA, we own several brands including Douk Audio / Nobsound / Little Bear etc. As a professional audio company, we are dedicated to design and produce the best products at the lowest prices to make HiFi affordable. We will spare no efforts to bring great products and service for customers and extremely to improve our customers listening experience. 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