20Pcs PAM8403 Miniature Digital USB Power Amplifier Board 2.5V - 5V

Description:Large output power, energy sufficient, good quality, can directly drive 4 Ω or 8 Ω small speakersGood noise suppression you will hear nothing from the loudspeaker if there is no audio inputYour can charge this board directly with your computer or mobile phone USBSuper mini design can be easily placed in a variety of digital productsThe whole board adopts machine welding with high quality standThe eft and right channels output end cannot connect together!Specifications:Unit size: 1.85 x 2.11cmMaterial: FR4Input Voltage: 2.5 - 5V USB power supply is availablePackage included:20 x 3W D-Type PAM8403 amplifier board