uxcell PAM8403 Volume Adjustment 2CH Class D Audio Power Amplifier Module Product Name : Dual-Channel Amplifier Module;Chip : PAM8403 Operating Voltage : 2.7-5.25V;Board Size : 3 x 3 x 1.4cm/1.2" x 1.2" x 0.55"(L*W*H) Material : Plastic, PCB, Iron;Color : Blue Weight : 5g Package : 1 x Dual-Channel Amplifier Module