The new battery sanders RTSC 400, DTSC 400, ETSC 125 offer outstanding mobility in the workplace. The powerful 18 V Bluetooth® Ergo battery with 3.0 Ah delivers the same performance as a corded model and provides the 1.4 kg lightweight machine with a well-balanced weight distribution and unmatched ergonomics. The integrated dust extraction combined with the Longlife dust bag makes the machine easy to handle, allowing you to easily work overhead or in hard-to-reach areas. With the Bluetooth® battery in combination with a Bluetooth® compatible Festool vacuum cleaner in AUTO mode, the vacuum cleaner starts automatically when you start the sander. For unlimited runtime, you can replace the battery with a plug-it power adapter – perfect for stationary use and in combination with a Festool vacuum cleaner.