Nano Gyro - Optimized for 700-Class & Larger Helis - Also Compatible with 250-Size & Up
Amazon.com: F03 2.4G RC Helicopter, 4 Channel, 6-Axis, PET + Carbon Fiber, Not Easy to Damage, Gyro, Flybarless, One Key Take Off, E-Stability System, Double Motors, 700 mAh Battery, Gift Children :
Align T-Rex 250 Pro DFC Super Combo Helicopter Kit [AGNKX019011] - AMain Hobbies
New Dynam E-razor 250 carbon edition 6 Channel 2.4Ghz 3D RC Helicopter RC Remote Control Radio
KX019005 TREX 250 SE Super Combo w/Servos and Gyro
Understanding The RC Helicopter Gyro
Amazon.com: F03 2.4G RC Helicopter, 4 Channel, 6-Axis, PET + Carbon Fiber, Not Easy to Damage, Gyro, Flybarless, One Key Take Off, E-Stability System, Double Motors, 700 mAh Battery, Gift Children :