The Toprock Bluetooth Speaker is the newest band member of the Festool sound family. The Bluetooth speaker in the Systainer3 lid combines all the advantages of the Festool Systainer system in perfect harmony. Store your tools and accessories inside the Systainer3 for a professional look while Toprock provides an amazingly clear, full-bodied sound, for professional audio. Features include. • Rich sound: Four active, high-performance speakers provide clear and voluminous harmony. • Power included: An integrated battery allows for an operating time of up to 10 hours at a medium volume. • Stereo mode: Bluetooth 5 with True Wireless Stereo enables two Toprock speakers to be paired to act as the right and left speakers. • Intuitive operation: Illuminated buttons are discreetly incorporated in the Systainer lid and are intuitive to operate.