Talk time refers to the total duration or amount of time a mobile phone can be used for voice calls on a fully charged battery. It is typically measured in hours and represents the maximum time a user can spend making or receiving phone calls before the battery is depleted.

The talk time of a mobile phone depends on various factors, including the phone’s battery capacity, the efficiency of its power management system, network conditions, and whether the calls are made on 2G, 3G, or 4G networks. Manufacturers often provide estimated talk time as part of the phone’s specifications to give users an idea of how long they can expect the device to last during voice calls.