SMAKN&reg; LM386 Audio Amplifier Module 200 Times 5-12V 10K Adjustable Resistance Product Name : Audio Amplifier Module;Chip : LM386 Magnification Times : 200;Power Supply : 5-12V PCB Board Size : 41 x 13mm/1.6" x 0.5" (L*W);Material : Electric Part Net Weight : 5g Package Content : 1 x LM386 Audio Amplifier Module