Gravity Sky Force Remote-Controlled Helicopter Take flight with the Sky Force Helicopter from Gravity! This 3.5-channel, indoor helicopter has a gyroscope stabilizer, so it flies like a dream. The two things that every remote-control helicopter should have--but few do--is a durable design and a stabilizer for effortless flying. The Sky Force has them both. With the infrared controller, you can pilot the Sky Force up, down, forward and backward. And if you have a crash landing, don't worry, the metal frame can really take a hit. 3.5-channel infrared controller Built-in gyroscope stabilizer Goes up/down and forward/backward 8 minutes of flight time per charge Charges in 20 minutes Indoor use onlyCalifornia Proposition 65 Notice: This product contains chemicals known to the State of California to cause cancer, birth defects, and/or other reproductive harm.