1PCS PAM8403 Mini 5V Digital Amplifier Board 2 Channel 3W with Switch Potentiometer USB Powered Amplifier Module

Description:Operating voltage: 2.5V-5.5VMaximum output power: 3W*2(5V 4Ω)PCB size :Length: 29mmWidth: 20mmOverall height after installed is about 16mm. Note:please make sure the power supply is not more than 5.5V and please don't do reverse polarity for "+" and "-", or else, it will burn the board.Package included: 1 x Super Mini PAM8403 2 Channel USB Digital Audio Amplifier Board Module 2 x 3W Volume Control With Potentionmeter Switch