Feature: 1. Using digital signal processing and FM modulation phase lock loop advanced technology, make sound more life‑like, performance more stable and working time longer without frequency deviation. 2. LCD display more intuitive and accurate, with very low power consumption and minimal noise interference. 3. 30 range digital volume adjustment, easy to operate by key, automatic data storage before power failure. 4. Automatic switching speaker and receiver output, adopts quartz frequency stability, temperature change no longer affected by frequency drift. 5. Professional audio signal analysis processing, FM signal noise automatic silence or weak signal, annoying rustle to eliminate traditional FM radio no signal or weak signal trouble. 6. Using digital incremental rotation encoder adjusts volume and frequency, good hand feeling, accurate positioning, stable and durable, 360° rotation without dead angle. 7. Support serial communication control, can use computer or MCU module equipment can control all functions. Specification: Condition: 100% Brand New Item Type: Module Material: ABS Color: As Pictures Shown Output Power: 500mW（Actuating Receiver），3Wx2（Actuated Loudspeaker） Frequency Range：50Hz-18KHz Receiving Frequency Range: Close Campus Radio: 87.0MHz-108.0MHz Open Campus Radio: 76.0MHz-108.0MHz Equivalent Noise：≥30dB Power Supply Voltage: 3.0V-5.0V Channel: Stereo Power Supply Current: Maximum Volume 1000mA, Minimum Volume Under 60mA Weight: Approx. 36g. Package List: 1 x Module1 x Accessory Kit