2pcs PAM8403 Audio Module Class D Digital Amplifier Board 2.5 to 5V USB Power

【PAM8403】 Audio Module DC 5V Mini Class-D digital amplifier board efficient 2.5 to 5V USB power supply 【Design compact】Excellent noise suppression, in the absence of circumstances connected to input audio ear close to the speaker can not hear any noise, two-channel stereo, 5V power supply can output 3W power, can directly drive 4Ω, 8Ω small speakers, the output power large, full of energy, good sound quality. 【High performance】Ultrafine size: 1.8 x 2 cm Note: The left and right channel output of the "negative" and can not be connected together, otherwise it will burn IC, and should be preceded powered speakers connected (load). Rated working voltage 2.5 ~ 5V, limit operating voltage 5.5V. Low power consumption: 2 x 3 W D class: efficient 2.5 ~ 5 V 【Fast Delivery】 Fast and high quality delivery from Spain by buying from TECNOIOT