XIITIA 2pcs DC 3V-5V FM Transmitter Module Stereo FM Transmitter DSP PLL 87-108MHz Stereo Digital Wireless Microphone Board Multi-Function Frequency Modulation with LCD Display Line/USB/Mic Input

Specifications: Power Supply Voltage: DC 3.0v - 5.0v Output Power: 100mW Equivalent Noise: >=30dB Operating Current: 35mA Modulation Mode: standard FM Adaptive Antenna: 75 cm bar antenna Transmission Frequency: 88.0~108.0 MHz Frequency Response Range: 50~18 KHz Sound Track: line/USB channel (stereo); Mic channel (single channel) Transmission Frequency: 76.0~108.0 MHz (campus broadcast: 76.0~87.0 MHz) Frequency Adjustment Stepping: 0.1 MHz/ times (short press the key); 1.0 MHz/ times (long press the key) Features: PLL digital phase lock 16-level digital volume 87.0-108.0MHZ Voltage: 3-5V LCD screen USB computer audio broadcasting Digital regulator Digital Noise Reduction Approaching CD quality Notes: Adopt advanced digital audio signal processing (DSP) technology and FM modulation phase-locked loop (PLL) to make the sound more realistic and the performance more stable. The LCD display is more intuitive and accurate, with very low power consumption and minimal noise interference. Full digital control, more convenient operation, making the product more stable and durable. Power and memory frequency and volume.