Product introduction: An FM radio built with a pre-assembled FM radio module. Requires soldering of the power amplifier and level indicator circuits. The power amplifier circuit features the PAM8406 device, delivering a maximum output power of 3W. The dual-channel level indicator is based on the KA2284 chip. Operating voltage: 5.0V5.5V, current draw: 500mA2A. Power amplifier and level indicator PCB dimensions: 9.5cm x 2.9cm. Enclosure dimensions: 11.9cm x 6.6cm x 6.6cm. Speaker: 4 ohms, 5W. Amplifier maximum power: 3W. Audio channels: Dual channel. FM frequency range: 87.0MHz108.0MHz. Precautions: Avoid touching the back components during operation to prevent interference, short circuits, or damage. This module is sensitive to radio signals; power supply noise or nearby interference may affect performance. This is a DIY kit and requires self-assembly. Minor variations between electronic component batches may occur but do not affect functionality. Color: Black Material: PCB, electronic components, acrylic Package Contents: 1 x DIY FM Radio Electronic Kit 1 x Remote control 1 x USB to DC cable Note: The package includes only the items listed above. Other products are not included. Lighting conditions and display settings may cause slight color differences between the image and the actual product. Measurement tolerance: 13cm.