World Tone Amplifier SPA-2000Connectivity Technology: Bluetooth, Auxiliary, USBPower Source: Battery PoweredAudio Input: USB Unleash the power of professional-grade audio with the World Tone Amplifier SPA-2000. Engineered for versatility and performance, this amplifier supports 4 microphones and features 3 auxiliary ports, making it perfect for events, presentations, or music sessions. Enjoy the freedom of Bluetooth connectivity, USB input, and a built-in FM radio, all packed into a sleek and portable design powered by a long-lasting battery. Key Features: 4 Microphones for clear and powerful audio input. 3 Auxiliary ports to connect multiple devices seamlessly. Bluetooth for wireless streaming and flexibility. Built-in FM radio for endless entertainment options. USB input for convenient playback of your favorite tracks. Step up your audio experience with the dynamic and reliable World Tone Amplifier SPA-2000, built to deliver exceptional sound wherever you go.