The Braun ThermoScan5 Ear Thermometer features include: #1 Brand among pediatricians and moms; Proven more accurate than rectal or temple thermometers; Exclusive pre-warmed tip enables repeatable accuracy; Guidance system gives visual and audible reassurance that the thermometer has been positioned correctly; Stores 8 temperature readings; Includes 2 AA batteries, 21 lens filters and protective case; White; 3 yr. limited warranty.