Dualsky offers great products in a variety of RC categories, ranging from RC surface motors, batteries and ESCs. Since their foundation in 2004, the Shanghai-based company was one of the first to venture into the RC quadcopter category, with the creation of their popular Dualsky Hornet 460.
Dualsky have some great packages available, including their Tuning Combos, which come with motors and ESCs. Their range of Z5 motors are also popular with RC car drivers.
Their new ECO-S batteries, released in early 2014 are also noteworthy, coming in a wide range of capacities. Regardless of what you are looking for, you will find that Dualsky offers great quality in all their products.