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ITEM NAME:10 x PAM8403 2X3W Mini Audio Class D amplifier board 2.5-5V input Product Overview 10 x PAM8403 2X3W Mini Audio Class D amplifier board 2.5-5V input The card adopts the PAM8403 typical circuit design, the use of MICRO USB power supply (reserved welding wire interface), it is very convenient to use universal mobile phone charger for power supply, resistance container of parts to adopt standard of SMT process, simple and stable special design interface for Bluetooth audio receiver module, Can easily DIY small bluetooth speakers the card can take 8 ohm 4 ohms small speakers, suitable for all horn frequencies or full frequency small speakers. Technical specifications: Supply voltage: DC 3.4 v-5 v Output power: 3.0Wx2 Quantity: 10 pc Note: Please allow 0-3mm error due to manual measurement..Find many great new & used options and get the best deals for 10 x PAM8403 2X3W Mini Audio Class D amplifier board 2.5-5V input at the best online prices at Order2india Shopping! Free shipping for many products!