FeaturesAccurate sound level meter with DB display: adopts dedicated LED display screen, 24 RGB LED lamp beads on each channel also with 24-level DB indicator display, incomparably and perfectly make music alive, decorate your listening space.Line input integrated with power interface: equipped with 1x USB & 3.5mm cable and 1x 1:2 3.5mm AUX cable, compatible with your phone/PC/game player/speaker, easily to see the music level status in real time and every slight change of sound can be shown visually. Support both AGC & DB display: AGC mode ensures 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. DB display can truly show the input level, suitable for professional occasions such as a recording studio or when testing a certain sound level.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. 4 kinds of sound level meter display effects and 10 kinds of display color for free choice, and all settings with power-off memory function, no need to set again after restarting.Specification: Model: AK_DB24D_PROSignal acquisition: line input (integrated with USB power interface)Display mode: AGC / DB Display color combination: 10 kindsDisplay effects mode: 4 kinds1. Main bar+ Peak dot fall after staying.2. Main bar+ Peak dot disappears after staying.3. Main bar only4. Main bar only one dotDisplay speed:Main bar rising and falling speed (15 levels)Peak dot stay time (15 levels)Peak dot falling speed (15 levels)Brightness: 15 levels adjustableWorking voltage: DC 5V Power interface: Micro-USBMaterial: One-piece molding and anodizingSoftware supported: ambient noise filteringDimensions(W*D*H): 51*21*85mm / 2.00*0.83*3.35inLED screen size(W*D): 70*41mm / 2.76*1.61inNet weight: 138g / 0.30lbPackage weight: 300g / 0.66lbTips:Please allow 1-3cm error of measurement.Photo color might be a little different from the actual product due to color display of different monitors. Product Includes: 1x AK_DB24D_PRO Sound Level Meter1x USB & 3.5mm Cable1x 1:2 3.5mm AUX Cable