Features More Stable Performance: DSP & PLL Digital Radio Receiver uses an incremental digital 360° rotary encoder to adjust volume and frequency, which is stable and durable.This encoder ensure less sound distortion and more stable performance. Professional Audio Analysis: When the FM fundamental tone is large and there is no signal or weak signal, it automatically mutes to get rid of the annoying rustle of traditional FM radio. Effectively eliminates background noise common in traditional FM radios. LCD Display: It has an intuitive and accurate LCD display with Low power consumption and strong noise interference suppression capabilities, better user experience . Quartz Material: FM Radio Receiver Module uses quartz crystal. The receiving frequency does not drift when the temperature changes. The frequency stabilization effect is better, ensuring that the receiving frequency is not affected by temperature changes. Advanced Technology: FM reception control module uses advanced DSP technology and PLL modulation technology to ensure excellent sound quality at the minimum cost. Features: Advanced digital audio signal processing (DSP) and FM phase-locked loop modulation technique (PLL) ensure less sound distortion and more stable performance. LCD display is more intuitive and accurate, and has very low power consumption and tiny noise interference. Using quartz crystal for frequency stabilization, and receiving frequency will not drift when temperature changes. Using professional audio DSP to process and analyze audio signal, auto mute when there is no signal or week signal as big FM base noise, in order to get rid of the annoying rustle of traditional FM radio. Using incremental digital 360° rotating encoder to adjust volume and frequency, which is accurate, stable, durable. Support serial communication control. Specifications: Output Power: 500mW (drive earphone), 3Wx2 (drive speaker) Frequency Response: 50Hz to 18KHz   Receiving Frequency Range: 87.0MHz to 108.0MHz(close campus broadcast), 76.0MHz to 108.0MHz(open campus broadcast) Equivalent Noise: ≥30dB   Input Voltage: DC 3V to 5V Input Current: 1000mA at maximum volume, 60mA at minimum volume (for reference only) Channel: Stereo Size: 75 x 45 x 30mm / 2.95 x 1.77 x 1.18" Screen Size: 25 x 16mm / 0.98 x 0.63"  Note: This kit requires certain professional knowledge and ability, please make sure you know how to use it. We cannot provide any technical service.  Package Includes: 1 x Module (Antenna is not included) Package List