Large 5-inch high definition advanced touchscreen. First in its class to offer Android 10 with built-in support for future Android releases provides superior future-proofing. Mobility DNA Professional integrated solutions are preloaded and pre-licensed provided at no cost. To take advantage of the complete Mobility DNA offerings for the TC21/TC26 a Mobility DNA Enterprise license is required. Optional Push-to-Talk (PTT) Express Mobility DNA software application for instant PTT walkie-talkie style calls inside the four walls. Extensive business-class accessory ecosystem including a removable/rechargeable standard battery for up to 10 hours of power or an extended battery for 14 hours of power.