Features:

Clear LCD display the spectrum of musical instruments.
With 2 buttons for operation, easy and convenient for use.
Short press K1 to set spectrum columnar width(1-5).
Short press K2 to set the display mode, 10 modes in total.
Long press K1 to enter setting interface, setting foreground color, background color and gain values.
Mini USB interface for power supply, 3.5mm headphone jack.
Parameters memory function when power off.

Default Parameters:

Mode: 0
Columnar Spectrum Width: 2
Gain: 0.5
Foreground color: GREEN
Background color: BLACK

Specifications:

Display: LCD
Screen size: 52 * 40mm
Power supply mini USB DC 5V
Jack interface: 3.5mm
Gain values: 0.125, 0.25, 0.5, 1, 2, 4
USB cable length: 80cm
Connecting cable length: 120cm
PCB size: 85 * 55cm
Product weight: 31g / 1.11oz
Package size: Approx. 11 * 11 * 2cm
Package weight: 72g / 2.54oz

Package includes:

1 x STM32 Spectrum Display Module
1 x USB Cable
1 x Audio Cable