The Mooov 477371 is a powerful Bluetooth speaker system with a total music output of 200 W, designed for a variety of audio applications. This portable speaker system features a trolley design and incorporates True Wireless Stereo (TWS) technology, allowing synchronization with another compatible Mooov speaker for stereo sound. The device offers multiple connectivity options: Bluetooth wireless streaming, a microSD card slot, a USB port for media playback, a 3.5 mm auxiliary input, and a separate microphone input for karaoke or public speaking. Seven dynamic LED light effects on the front bass drivers create colorful visual displays and enhance the party atmosphere. Equipped with two 8-inch bass drivers (20 cm), the speaker delivers robust audio performance suitable for various events. The built-in recording function allows voice recording directly onto USB or microSD storage devices. For improved portability, the design features a retractable handle and trolley wheels, with dimensions of 580 mm height (880 mm when extended), 280 mm width, and 290 mm depth. The battery life offers up to 3 hours of operation at maximum volume or about 9 hours at 50 percent volume, with a charging time of approximately 4 hours using the included charger. The black surface and solid construction make this speaker suitable for both indoor and outdoor use, providing reliable audio performance for music playback, karaoke sessions, or sound reinforcement applications.