The Tiny Audio Amplifier kit is a good choice for battery operation. It is based on LM386 IC.
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Power supply - 6 - 12 VDC
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Output power - 1 W, 8 Ohm
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The quiescent power drain is only 24 mW when operating from 6 VDC
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Self-centering output quiescent voltage
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Onboard PRESET to adjust volume
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Terminal pins for connecting power supply, audio signal and speaker
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Power-On LED indicator
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ON/OFF PCB mounted slide switch for power supply
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Four mounting holes of 3.2 mm each
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PCB dimensions 44 mm x 44 mm
| Schematic |
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