The SRTF (Stabilized Ready to Fly) version is equipped with the Istone gyro system that provides both flight stabilizing mode, and Aerobatics mode, similar to a SAFE system. It helps a lot with compensating for wind effects, as well as making training much easier. Everything is installed! Assembly time is in minutes. 

SPECIFICATIONS:

Servo: 9*g 4pcs
7.4V 1800mAh 25C Lipo Battery
30A ESC with 3A BEC
Bu=rushless motor: BM3512A-KV 1200
Balance Charger: 2-3 Cells
Radio: GAVIN-6A 6 CH 2.4G TX

Wingspan: 1850mm (72.8in)
Length: 1090mm (42.9 In)
Flying Weight: 980g
4PCS/CTN
CTN Size: 117*32*94 (Cm)

SRTF (Inc 2.4G receiver with 6-Axis Gyro w/ ABS