Schematic diagram of Lifan Maiwei radio button: Set the radio interface point, click Reverberation Off and turn off the radio. What interface is displayed is what sound. Radio consists of mechanical devices, electronic devices and magnets. , is a machine that converts radio signals into electric energy and can listen to audio signals sent by radio stations. Also known as radio, broadcasting, etc. Car stereo: A playback device used to alleviate the boredom of drivers and passengers during travel. First, the car AM radio was used, followed by AMFM radio and tape player, and developed into CD player and digital audio compatible with DCC and DAT. At present, car audio has reached a high standard in timbre, operation and vibration prevention. It can not only deal with the bumps of cars on rough roads, but also ensure the stability of performance and the perfection of sound quality. With the rapid development of China's automobile industry, the auto parts industry is also growing rapidly. At present, 90% of the car audio market in China is occupied by foreign brands. Since the first Philips car audio entered China in the early 1990s, the car audio market has developed into a large-scale professional market with annual sales of nearly 3 billion yuan, more than 300 times that of 10 years ago.