The new battery sanders RTSC 400, DTSC 400, ETSC 125 offer outstanding mobility in work. The powerful 18 V Bluetooth® Ergo battery with 3.0 Ah delivers the same performance as corded models and provides the 1.4 kg lightweight machine with a well-balanced weight distribution and unmatched ergonomics. Integrated dust extraction combined with the Longlife dust bag makes the machine easy to handle, allowing you to work effortlessly overhead or in hard-to-reach places. With the Bluetooth® battery in combination with a Bluetooth® compatible Festool vacuum in AUTO mode, the vacuum automatically starts when the sander is turned on. For unlimited operating time, the battery can be replaced with a plug it mains adapter – perfect for stationary use and in combination with a Festool vacuum.