Feature: 1. This audio power amplifier uses LM386 chip.2. It has 200 times gain circuit design, and power indicator light. 3. The board is designed with terminal blocks for convenient wiring of speaker. 4. The 10K adjustable resistor can be used to adjust volume. 5. The main pin of chip can be input audio signal directly. Specification: Features:
Specification: Working Voltage: 5~12V Size: 4*1.3cm / 1.6*0.5in Quantity: 5pcs Weight: 25g / 0.9oz (approx.)
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