AD-60 is a Class AB integrated power amplifier to support 2.1 system. It combines pre-amp decoding, power amplifier, digital playing, and earphone amp, to support Bluetooth 5.0, USB stick, TF card, smart phone App control, and digital inputs including optical, coaxial and PC USB-Audio. It’s originally designed and made of quality materials and components to reveal analytical sound. It’s a fashionable and cost-effective power amplifier for your high fidelity sound entertainment.