Charged, the DUO 2 is ready to use for 2 hours. Thanks to the innovative Smart Silence™ technology, the DUO 2 is in standby mode during use and the pampering program starts only on contact with the skin. This means you can pick it up or put it down at any time without having to operate buttons or be disturbed by noise.
Upon inactivity, the DUO 2 automatically turns off after 5-10 minutes (depending on battery level). This can also be easily bypassed by pressing one of the intensity levels, for example.