Special feature: 1. Comprehensive composition: The DIY soldering project spectrum consists of various components such as a pickup, an amplifier, a microcontroller and an LED, which ensure robust and effective performance. 2.Sound Control Induction: This function allows the USB mini electronic display to respond to sound without the need to connect an audio line, ensuring convenience and ease of use. 3. Adjustable Sensitivity: With adjustable sensitivity, the sound activated home stereo speaker kits can automatically detect the melody of the sound, adapting to different audio environments. 4. Customizable display parameters: You can adjust the refresh rate, audio response sensitivity, sampling frequency and more of the DIY speaker LED music spectrum. This customization allows for optimal performance based on your specific needs. 5.Multi-color LED lights: Equipped with multi-color LED lights, the DIY part with spectrum indicator light is perfect for recording rhythms and fits various scenes that require dynamic light show. A fantastic addition to any party, event or setting. Specification: Origin: Mainland China Type: Module Condition: New Kit Name: HU-052 Voice Activated Plug-in LED Music Spectrum Kit Working power supply: USB powered 5V Working voltage: 5V PCB length: 123 x 62 mm Instructions for use 1. Connect the USB port, the device turns on and enters working mode 2. Adjust the pickup sensitivity via RP1 3. Long press SW1 to switch settings and short press SW1 to select parameters Product size: 123.00 x 62.00 x 15.00 mm Product size: 4.84 x 2.44 x 0.59 inches Delivery content 1 x Voice Control Spectrum Parts with Case or 1 X Voice Control Spectrum parts without case