4 heads can be used underwater and washable. It has a rechargeable feature. Get now a soft and silky skin with the Braun Silk-Expert 5 hair removal device for wet and dry use. This device includes wonderful features, which will provide the best results for long-lasting smooth skin for up to 4 weeks. This hair removal device allows you to use it even during bathing to give you extra comfort. This device features an anti-slip handle that provides you with control when gripping it, even when wet. This device is equipped with several technologies, making it capable of removing tiny hairs even if they are the size of a grain of sand, and it also reduces the feeling of pain during hair removal. This device also comes with a skin contact head, which helps adapt to all body curves. This makes this device very useful when dealing with sensitive areas.