GameSir G4s: The Must Have Android Game Controller in 2016
The GameSir G4s Bluetooth game controller is definitely an advanced upgrade from the GameSir G3s!
L3 button (left joystick) & R3 button (right joy stick)
Hidden Bluetooth USB dongle With the G4s gamepad you get an even more accurate and responsive zero delay game controller with a built-in 800 mAh polymer lithium battery that lasts 18 hours on a single charge thanks to power saving features like automatic sleep mode. Charging time takes only 2.5 hours.