compare to mjx x101
1 Altitude-hold mode ( fly more stably)
2 one key start/ landing/ (easilier to control)
3 Unlock (safer)
buy here :
http://hz.aliexpress.com/item/MJX-X102H-2-4G-RC-quadcopter-drone-drones-rc-helicopter-6-axis-upgraded-mjx-x101-vs/32671266212.html?spm=2114.01010208.3.18.Py0YxS&ws_ab_test=searchweb201556_10,searchweb201602_4_10017_507_401_10040,searchweb201603_2&btsid=154cc127-7974-482e-82d9-55c73b0a3346
