Whether you're hosting a conference or energizing a crowd, the Okayo GU851 portable PA system delivers professional-grade sound wherever your message needs to be heard. Equipped with a powerful 10" woofer and 1" tweeter, the GU851 provides a maximum output of 150W, ensuring your audio is always loud, clear, and impactful; even in large venues with audiences of over 1,000 people. GU851 constructed with durable materials and a rugged exterior design for long lasting reliability. Users can precisely adjust audio levels with professional standard support for AUX inputs, XLR, 1/4″, RCA, and 1/8″ ports, along with independent volume controls. One-button Bluetooth ensures a stable and fast wireless audio connection from mobile devices, while the optional USB/SD MP5 media player adds extra flexibility for direct playback. Built-in rechargeable battery provides up to 6 hours of continuous use on a full charge, meeting the needs of a full day. Supports AC power, making it user-friendly and convenient for various situations. With a built-in retractable handle and wheels, performers can easily relocate the speaker from one location to another, making it effortless to transport.