2-channel mini radio transmitter in glossy pure white, measuring 43 x 43 mm and 16 mm high. Weighs only 30 grams. Additionally prepared for attaching a keychain. It generates energy for radio telegrams with a button press, therefore no battery is needed. Smart Home sensor. The battery-free mini transmitter features 1 rocker switch, which can send 2 evaluable radio telegrams. The rocker is laser-engraved with 0 and I. This radio remote control can be attached to walls, glass, or furniture using the included adhesive film, just like wireless radio buttons. The mini transmitter comes with the following engraving: Top 0 (= off) and bottom I (= on). The radio module contained in the mini transmitter can be encrypted into all encryptable actuators of series 61 and 71, as well as into the FAM14, according to the operating instructions. The radio button encryption rocker FTVW is required for this. Encryptable actuators bear the key pictogram.