The smart charger can work with 4 x AAA alkaline batteries, so you can charge your mobile phone anywhere without an electrical outlet. Including 4 different connectors for Nokia, Siemens, Motorola and Ericsson . Customers can also have a couple of or more connectors as they wish. With universal adapter it will work with most brands of cell phone such as Motorola, Ericsson, Nokia, Siemens and Samsung and more.