Prestige® 2.0 high-definition (HD) comfort system kit, RedLINK™-enabled. Includes Prestige 2.0 HD thermostat. Prestige redefines how thermostat can look and function and is easiest-to-use programmable thermostat available. This RedLINK enabled line includes seven-day programming wizard, multi-language options and USB setup, customizable service reminders. UN-3091 lithium metal batteries packed in/with equipment. Up to 2 heat/2 cool, conventional systems; up to 3 heat/2 cool, heat pumps. Includes THX9321R5030 Prestige 2.0 thermostat and C7089R1013 wireless outdoor air sensor. Use with RedLINK™ enabled thermostats and accessories. Tri-lingual display; select for English, French or Spanish. Seven-day, multiple-day programming or non-programmable. Hardwired. Auto or manual changeover.