4pcs PAM8403 Mini DC 5V Digital Audio with Potentiometer
1. Working voltage: 2.5V-5.5V2. Maximum output power: 3W2
(5V 4Ω)3. Length: 29mm4. Width: 20mm5. Overall height after installation is
about 16mm. Note:Please make sure the power supply voltage does not exceed
5.5V.br/>Do not connect "+" and "-" in reverse, otherwise the circuit board
will be burned.
 
Product Features
  

         
Premium Quality AssuranceEach unit is 100% brand new, boasting top-tier quality, with a power supply range of 5V DC and a minimum output capability of dual 3W speakers.
         
Optimized DesignThe device features an authentic anti-clockwise potentiometer body, enabling the direct cutoff of power with the counterclockwise turn. It is equipped with a rationally designed peripheral circuit for optimal performance.
         
Compact Amplification ChipThe PAM8403, a miniature digital amplifier chip, is integrated to showcase the superior attributes of digital technology in amplification.
         
Enhanced CircuitryThe circuitry is meticulously configured for high performance, with an upgraded power filter to 470F and the use of 1.6mm glass fiber, ensuring exceptional audio characteristics.
         
Integrated Safety FeaturesThe system delivers high-fidelity sound at 3w + 3w output and includes a noise reduction chip. It also incorporates short circuit current protection and over-temperature safeguards to ensure reliable operation.