Improved DIY soldering kit, electronic audio spectrum analyzer, levels set

Features: Operating Voltage: DC5V-DC8-24V. Power Interface: USB to DC3.5V flat cable. Input Mode: Automatic wired/wireless switching. Single/dual band display, maximum value hold function. Basic electronics knowledge and some manual dexterity are required. Specifications: Material: Printed circuit board (PCB). Dimensions: Approx. 16.87 x 3.53 cm / 6.6 x 1.4 inches. Note: Please allow 1-3 cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between monitors, the actual color of the item may differ slightly from the color shown. Kit includes: 1 x DIY soldering kit.