Warranty: Features: Powerful 20.32 cm speaker driver delivers clear and deep sound. Up to 8 hours playtime for long-lasting entertainment on a single charge. Quick recharge fully charges within 2 hours. Multiple connectivity options: Bluetooth 5.4, AUX, USB, and SD card support. Built-in microphone for hands-free calling. Wide compatibility with iPhone, Android, tablets, laptops, and Bluetooth devices. Easy control buttons for play, pause, volume, and track navigation. Technical Specifications: Speaker Driver: 20.32 cm (8 inch) × 2 Bluetooth Version: 5.4 Play Time: Up to 8 hours Frequency Response: 20Hz – 20kHz Charging Time: Up to 2 hours Power Output: 5W Multiple Connectivity: USB / AUX / SD card Bluetooth Range: Up to 10 m Speaker Controls: Power, mode, play/pause, volume, previous/next track Power Input: DC 9V / 0.3A Built-in: Microphone