The E series tuned propulsion system is the first power solution of its kind for the multirotor industry. It brings greater aerodynamic efficiency and higher thrust-weight ratio, while increasing reliability, stability and agility. Click to expand...View attachment 1786 View attachment 1785 Read more and see photos via the source link. Source: http://www.dji.com/dji-released-the-tuned-propulsion-system-e300-and-e600/ Continue reading...