Description: Widely Use: Power amplifier supports RCA and AUX input, widely universal with various devices, such as mobile phones, MP3, MP4, CD players, TVs, computers, etc Multifunctional: Audio player is suitable for use at home, in cars, boats, RVs or on golf courses, easy to install and play, saves space and is easy to operate. Versatile Design: Equipped with an input selector and various adjustable knobs to cater to different listening preferences, including main volume, and bass, subwoofer frequency and volume for a personalized audio experience Stylish and Compact: With a mini size and an elegant aluminum shell, adds a touch of fashion and practicality. Suitable for home and desktop audio systems Powerful Performance: Engineered to deliver audio performance, the amplifier enhances your audio setup with clear and dynamic sound, suitable for both home and professional applications Specification: Material:Aluminum Alloy Size Chart: 15cmx9cmx4cm/5.91inchx3.54inchx1.57inch Package Includes: 1 Piece Power Amplifier(US Standard) Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.