NOKIA 5165 Estimated talk time: Up to 180 minutes in Digital mode with standard battery. Estimated standby time: Up to 3 days in Digital mode with standard battery. Weight: 5.9 ounces Two-way text message capable, send and receive text messages. Predictive text input, uses built in intelligence to predict what you are trying to type, for rapid text entry. Built in calendar, with room for 50 appointments and reminders. Phone book, stores 100 names, numbers and email addresses. SAR Radio frequency emission rating: 1.46 W/kg.