1、High Resolution: MCU is used to process audios signals, 56 bits per channel, 112 bits stereo display, super high resolution, realize real time viewing of music level status, every tiny sound change can be displayed visually, dynamically decorate your enjoy listening 2、Display Effect: Through input level (gain) adjustment, control most input signals, achieve better beating effect, 5 display, main beam, main beam + peak point drop, left and right channel beam mirroring display, left and right channel beam mirror display + peak point drop, spring beam 3、Independent Setting: All Setting Items (16 Level Speed Adjustment) Can Be Set independently, and have sample effect display that can be viewed in real time. All display items include: descending speed of the main beam, descending speed of peak point, the dwell time of peak point 4、Simple Circuit Layout: Reasonable and simple circuit layout, the power supply is only for the display motherboard, not through the audios input and output circuit, the sound quality will not be disturbed, but only increases the dynamic visual enjoyment 5、High Compatibility: In addition to standard stereo LR RCA inputs and outputs, microphone pickup is an addition that enables wireless connectivity and is compatible with the most common audios devices such as cell phones, computers, CD players, preamps, etc. 1 x Finished LED Music Spectrum1 x Micro USB Cable1 Set x Brackets (4Pcs)4 x Washer1 x Chinese and English User Manual Item Type: Music Spectrum MeterMaterial: AluminumBits: 56 Bits Per ChannelDisplay Colour: 56 Bit GreenPower Interface: Micro USBWorking Voltage: DC 5V 100mAPower On Off Function: SupportPower Off Memory Function: SupportInput Level (Gain) Adjustment: SupportInput Voltage: 0~3VrmsAudios Input: Stereo L R, RCA Mic PickupAudios Output: Stereo L R RCASize (L x W x H): Approx. 150 x 120 x 40mm / 5.91 x 4.72 x 1.57in