This June, Samsung released its first solar powered mobile phone, Crest Solar E1107. Its additional solar battery can be useful when electricity is unavailable especially in very remote area. This cell phone can provide talk time approximately 5-10 minutes with recharge using solar energy for one hour. Panel solar recharging make it possible for customer to reduce the use of electricity therefore it can help to save some money. Features in Crest Solar is similar with usual cell phone such as radio, Mp3 ringtone, games and other common function.