Features:

This miniature PAM8403 can be used with a computer USB port, USB power bank or cell phone charger to provide 5V support power, or it can be powered by battery.

Double panel wiring, wiring appropriately balanced, cross -talk between channels, and landing potentials caused by ultra -small design can be easily arranged in small space and highly amplified digital products.

Class D amplifiers are highly efficient, at around 90%.

Class D amplifiers are extremely efficient and do not affect the sound quality due to temperature without adding a heat sink and taking up less space, and the noise cancellation circuit is built into the amplifier board.

Can provide 3W (left channel) + 3W (right channel) output power under 4 loads and 5V power supply conditions.

Specifications:
Product name: Mini digital powerboard
Operating voltage: 2.5V-5.5V
Speaker equipped with: 4-8 ohms Recommended: 4 ohms
Speaker power:2-8W
Size: 21 x 19 MM

Note: The "negative poles" of the left and right channel output terminals cannot be connected together, otherwise the IC will burn, and the speakers (load) should be connected before power is turned on.

Package includes.
3PCS Super mini PAM8403 digital power amplifier board