ITEM NAME:PAM8403 Two Channel Dual Track Audio Power Amplifier Module 5V 3W2 J3J7 PAM8403 Two Channel Dual Track Audio Power Amplifier Module 5V 3W2 J3J7 An onboard PAM8403 audio amplifier chip, 3W * 2 Stereo filterless Class-D audio amplifier. 2-way onboard 5.08 (mm) pitch 2P terminal, respectively, left and right channel output wiring. The chips are pin is already leads to facilitate the external device control Working voltage: 5V colour: blue Material: plastic size: Board size: approx. 30 x 30mm Package Contents: 1 x Double Track Power Amplifier Module Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..An onboard PAM8403 audio amplifier chip, 3W 2 Stereo filterless Class-D audio amplifier. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.