The Drone Evolution Controller is a Bluetooth wireless controller that works on Android.
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Pro Small and portable
The Drone Evolution Controller is small and lightweight making the device portable and pocketable. It does this while not sacrificing any buttons - it still features a D pad, two analog sticks, four buttons (ABXY), and shoulder as well as trigger buttons.
Pro Built in Lithium-ion rechargeable battery
There is a built in Lithium-ion rechargeable battery that is charged through USB.
Con Limited selection
It may be difficult to find as the controller does not seem to be on stock on the manufacturers site other than in one color (white high-gloss). It is also out of stock on Amazon.
Con Buttons don't always register when pressed lightly
Unless you constantly press down hard, the controller will miss about 1 in 5 button presses (for both the D pad as well as the ABXY buttons).
Con Confusing settings
Settings may be confusing or difficult to use.