The Sound of Systainer, the Bluetooth® speaker in SYSTAINER format – tools below, music above. Top sound with four neodymium speakers and two bass reflex systems. Bluetooth® 5 with TWS (true wireless stereo) provides stereo sound that fills the entire room when two TOPROCK speakers are connected. Power bank function: USB port for charging external devices. Intuitive operation and illuminated buttons. Operates with the built-in battery or power cable. The perfect companion on the construction site, in the workshop, and in your free time. To stream your favorite songs via Bluetooth®. Delivery includes: power cable 230 V, all-inclusive warranty