Brand new and high quality Adopt advanced DSP technology and FM PLL modulation to make the sound more realistic, more stable percompatible withmance, long working hours without frequency offset.More intuitive and accurate LCD display, with low power consumption and minimal interference noise.30 range of digital volume adjustment, can be easily used with key combinations.Memory data becompatible withe automatic power failure.Automatically switched speaker and output reciverAdopt frequency stabilization quartz crystal, the temperature change is no longer receiving frequency.The professional audio DSP audio signal analysis and processing, automatic mute no signal or weak signal when FM noise, Get rid of traditional FM radio in no signal or weak signal when annoying rustle.Adopt digital incremental rotary encoder to adjust the volume and frequency, well handfelt, precise positioning, stable and durable, 360  rotation without dead ends.Support compatible with control serial communication, able to use computer or device capable of controlling all the functions of the MCU module. Specifications Output power: 500mW (operate reciver), 3Wx2 (operate speaker) Frequency range: 50Hz-18KHzReception frequency range:Close the 87.0MHz-108.0MHz campus radioOpen the 76.0MHz-108.0MHz campus radio Noise equivalent:  greater or equal to  30dB Power supply voltage: 3.0V-5.0V Channel: Stereo Supply current: maximum volume 1000mA, minimum volume below 60mA (compatible with reference only) Colour: Green Material: Plastic Package Contents:1 * Radio Receiver ModuleOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.