Specification Brand : Generic BulletPoint : LM3915 DC 9V-12V 10 LED Sound Audio Spectrum Analyzer Level Indicator Kit DIY Electoronics Soldering Practice Set Laboratory BulletPoint1 : BRIGHT AND COLORFUL LED: 1624 LED music spectrum display built by 16 columns and 24 rows total 385pcs RGB LEDs, bright and colorful to add more fun to your music playback BulletPoint2 : VARIOUS FUNCTIONS: Music spectrum display has 20 kinds of dynamic effects x 7 kinds of color effects, can form 140 kinds of different display effects. 4 clock display modes and 2 way alarm functions, 1 breathing mode and 1‑7 brightness modes. Variety of functions can be personalized according to personal preferences BulletPoint3 : 2 CONNECTION MODES: LED music spectrum display built in voice sensor, only need power supply, no need to connect sound cable to work; Sound line control, connect the power supply and sound line to work, and connect the sound line to automatically turn off the voice sensor function, which can avoid noise affecting the display effect. You can choose the wiring method according to the surrounding environment BulletPoint4 : POWER SUPPLY: Music spectrum display adopt USB 5V 1A, power for 3W ,USB 5V power supply can be powered by mobile phone charger or computer USB, but cannot be charged BulletPoint5 : LONG LASTING MATERIAL: Music spectrum display is made of excellent ABS material, wear , impact , possess long service life Color : Black ExternallyAssignedProductIdentifier : 7665720096059 ItemName : LM3915 DC 9V-12V 10 LED Sound Audio Spectrum Analyzer Level Indicator Kit DIY Electoronics Soldering Practice Set Laboratory ItemPackageDimensions_Height : 6 centimeters ItemPackageDimensions_Length : 24 centimeters ItemPackageDimensions_Width : 9 centimeters ItemPackageQuantity : 1 ItemShape : House ItemTypeKeyword : spectrum-analyzers Manufacturer : Generic Material : A printed circuit board ModelName : Yunseitysoz6ekhx4g ModelNumber : Yunseitysoz6ekhx4g PartNumber : TMI_SFNW_11246 ProductDescription : | LM3915 audio level indicator kit (presented two connecting lines) Power supply voltage: DC9V - 12V PCB Size: 62mm * wide 27mm Two kinds of instruction modes: strip instructions and fire point-like instructions Lights provide both vertical and horizontal rows of installation HAL treated pad Parameters are printed directly on the PCB components, without reference to the circuit diagram of the situation can be welded directly, very convenient. HAL treatment pads, solder joints can be better, but beautiful.