SONY ERICSSON T300 Estimated talk time: up to 7.5 hours Estimated standby time: up to 14 days Advanced phone book (up to 250 entries) Infrared port for data transmission. GPRS handset for data transmission and mobile Internet (WAP) Tri-band world phone (1900, 1800 and 900 MHz) that operates on five continents 5-way joystick navigation Advanced predictive text input Clock, Alarm clock, Calculator, Calendar, Games SAR Radio frequency emission rating: 1.2 W/Kg