Mobile and fatigue-free: cordless and hose-free, with perfect ergonomics, low height, and only 1.4 kg in weight. Powerful: The 18 V Ergo battery pack combined with the brushless EC-TEC motor delivers performance like that from a wall outlet. Continuous operation: thanks to the 3.0 Ah capacity battery packs that run longer than they charge. Unlimited runtime: For continuous electric operation, the battery pack can be swapped for the plug it mains adapter (included in the set and available as an accessory). Dust-free and healthy: with the Longlife dust collection bag made of extra durable polyester fleece or in combination with a Festool mobile dust extractor. Less rework: PROTECTOR for gentle sanding along window surfaces, frames, and fillings. Comfortable dust extraction: The battery pack communicates via Bluetooth with the Bluetooth module of the CLEANTEC mobile dust extractor (retrofit available for CT 26/36/48, directly integrated in CT MINI I and MIDI I) and automatically starts the dust extractor when the battery sander is turned on. The new battery compact sanders ETSC 125, RTSC 400, DTSC 400 provide unique mobility and freedom of movement while working. The powerful 18 V Bluetooth Ergo battery pack with 3.0 Ah guarantees wall outlet-like performance and is key to an extremely compact design with balanced weight distribution and perfect ergonomics at just 1.4 kg. The self-extraction combined with the Longlife dust collection bag allows for flexible handling of the machine – fatigue-free even overhead, vertically, or in hard-to-reach spots. The Bluetooth battery pack enables straightforward operation in combination with a Bluetooth-capable Festool mobile dust extractor, ensuring that the vacuum starts automatically in AUTO mode when the battery sander is turned on. For unlimited runtime, the battery pack can be swapped for the plug it mains adapter – ideal for stationary use and also in combination with a Festool extractor.