Samsung B2100 sim free Xplorer - As the name suggests, this phone is built with an eye on durability and shock resistance. Its water and dust resistant and waterproof up to 1 metre for up to 30 minutes. Its casing is built with anti-shock materials, namely urethane to provide the element that this phone has become renowned for. Noise cancellation with a dedicated microphone provides clarity of call and suppresses unwanted noise to a level which ensures that is the case.