Overview This radio kit has a digital display frequency function, power failure memory function, power saving function, two keys for setting the progress key, press the progress of 0.1MHZ, long press can be continuously added or subtracted. Power off and on again to restore the original radio station, each power or key digital tube after the frequency display for 5 seconds, after the rest of the screen to save power. It can be used for homemade radio or microcontroller learning. Features 1. This radio kit has digital display frequency function, power failure memory function, power saving function; 2. Power saving function, each time the power or key after the digital tube display frequency for 5 seconds, after the rest of the screen to save power; 3. The design of the antenna, FM FM performance signal more stable; 4. Exquisite transparent shell, support for external speakers, RGB spectrum display automatically flashes; 5. This is a radio electronic welding kit for electronics enthusiasts and beginners to learn welding skills and abilities perfectly while getting a practical radio. Specification Supply voltage DC4.5-5V FM range: 87.5Mhz 108Mhz Output impedance: 4Ohm Output power: 5W Output channel: Mono Frequency accuracy: 0.1MHz Equivalent noise: >=30dB DC seat power supply connection: internal positive and external negative (do not connect reversely!) Product size (finished): 80.5mm * 56mm * 66mm Note: The product is delivered loose and unfinished, the user needs to assemble it by himself! How to use. 1.Press the left button to turn on/off the power. 2. Press the right button to turn on/off the spectrum display. 3. Press S+ or S- to adjust the volume. 4 Press P+ or P- to adjust the receiving frequency and FM station. List 1 x Radio DIY Kit loose parts