and high quality Made of high quality materials VFD2515 music spectrum display 5-12v input with voice control VFD2515 Audio Spectrum Analyzer VFD Voice Control Music Level Display VU Meter Input voltage: 5V Type-C/12VDC, Sleep current: 0.03A (5V), Working current: 0.3-0.8A (5V), Input channel: audio input x1, Pickups: Silicon Mark EMS (for jumper selectable), Frequency response: 300Hz-20KH, Input impedance: 50kOhm, Dimensions: 176x50x28mm, Screen material: glass, Shell material: Acrylic PMMA, Microcontroller: STM32F103, Display resolution: 25 segments and 15 levels Specification: Input voltage: 5V Type-C/12VDC Sleep current: 0.03A (5V) Working current: 0.3-0.8A (5V) Input channel: audio input x1 Pickups: Silicon Mark EMS (for jumper selectable) Frequency response: 300Hz-20KH Input impedance: 50kOhm Dimensions: 176x50x28mm Screen material: glass Shell material: Acrylic PMMA Microcontroller: STM32F103 Display resolution: 25 segments and 15 levels Function: Spectrum mode optional bell speed regulation Dimming Gain adjustment (internal/external) Color: Black Material: Acrylic Package Contents: 1 * VFD Audio Spectrum DIY Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.