●Built-In Airjet System With 180 Jets Releases Warm Air Into The Water, While The Digital Control Panel Adjusts The Temperature Up To 104 Degrees Fahrenheit ●Features A Freezeshield Automatic Heating Function To Prevent Inner Components From Freezing During Colder Temperatures To Ensure Long-Lasting Use ●Constructed Of Durable Drop Stitch Material That Provides Rigidity While Still Being Lightweight For Easy Portability When Deflated