Children's Mobile Phone Tracker - GSM GPS Tracking, SOS Calls, SMS, Voice Monitoring GK301 (Orange, Blue) GPS Tracker Phone designed to look like a compact mobile phone while featuring SOS calls is ideal for children or the elderly. At only one third the size of a normal mobile phone, the tracker phone is also a full featured GPS tracker using the latest SIRF Star III GPS Receiver. This GPS Tracker Phone retains only the essential features of a cell phone, which is to make phone calls when they need it. With only 5 preset phone numbers available including 1 emergency SOS number and no SMS or Internet Surfing capabilities, your kids are less likely to spend hours of their time and expensive phone bills on unnecessary phone calls, excessive text messages or inappropriate web contents. When making an SOS call during an unexpected emergency situation, the tracker phone will also send out a text message containing its location. Real time positioning information can be obtained by sending a SMS message to the tracker phone any time during the day. Set the tracker phone to periodically report its location to you, so you know exactly where your kids are. There is a voice monitoring function that allows you to instantly listen in on conversations via this GPS tracker phone. Can insert one GSM SIM card to be used to make calls that will use quad band second generation networks such as 850/900/1800/1900MHz, therefore having worldwide use. The battery that is used is 800mAH; which is more than enough for this phones capabilities and can last 2 to 3 days on standby.