Specifications Kit Name HU 052 Voice Control Direct Plug LED Music Spectrum KitWorking Power Supply USB Powered 5VWorking Voltage 5VPCB Length 123x62mmInstructions for Use 1 Insert USB to power on the device and enter working mode 2 Adjust recording sensitivity using RP1 3 Long press SW1 to switch settings and short press SW1 to select parameters Features Comprehensive Components This kit includes essential parts such as a pickup amplifier microcontroller and LED making it a well rounded package for creating a dynamic music spectrum display Voice Control Sensing The device features advanced voice control sensing eliminating the need for an audio cable while ensuring a seamless user experience Adjustable Sensitivity It automatically detects sound melodies with adjustable sensitivity allowing for customized and responsive audio interaction Customizable Settings Users can set various parameters including display refresh speed audio response sensitivity and sampling frequency providing flexibility in how the music spectrum is displayed Multi Color LED Lights Equipped with multi color LED lights this kit is perfect for various scenarios adapting to the rhythm and jumping of the pick up sound to create vibrant visual effects Package Included 1 x DIY Electronic Kit