Features: ● Infrared remote controller functions: climb, descend, and tail fin control with a 15-25m ● SIZE: 130*80cm ● Requires 4 AAA Batteries (one in the body and three in the controller). Not included.● Requires helium to float (not included). Can be reinflated over and over. May not fly as intended at high altitudes● Requires complex assembly of fragile parts. Reviewing the product assembly video on the manufacturer's website is highly recommended before purchasing and before attempting assembly.