Speaker – Power 5 Watts – Built-in wireless – Bluetooth 5.0 – Power supply: AC + Battery – The Vertical Speaker is designed for young people who want to enjoy great music with friends. With its modern design and four color patterns, it fits every style. Perfect as an outdoor speaker, it can be taken anywhere, providing 5 hours of uninterrupted music. The elastic strap allows for easy attachment to a backpack. The Vertical Speaker features Bluetooth 5.0.