Venus Silk expert is a ground-breaking IPL system, which results in permanent hair reduction in as little as four treatments. It works beneath the skin's surface by targeting the melanin in the hair follicle, helping to break the cycle of hair regrowth. With continued, regular use, it helps prevent unwanted hair from reaching the skin surface. Skin tone varies across different parts of the body, with each tone requiring a specific energy level to target the melanin. Only Venus Silk-expert has the unique SensoAdapt skin tone sensor that continuously reads your skin tone 80x per second and automatically adapts the light intensity for best efficacy and safety. This removes the guesswork of having to match your skin tone against the complicated color matching charts other devices require. Power source 110 to 240v Mains ( It comes officially with a 220V UK EU cable. Local plug is provided inside the box as extra. Machine itself is 110 to 240v can be used anywhere in the world ). This model is same as Braun Silk expert 5 IPL BD 5006 but it has Gillette Venus razor only. Braun BD 5006 has pouch too.