REALVOX Mini Bluetooth Remote Controller For VR Virtual Reality 3D Video Movie Game Glasses, Portable Multi-functional Wireless Bluetooth Android Gamepad Camera Shutter Selfie Shutter, Green Small and lightweight, convenient to carry. The buttons and the joystick to be responsive, none of the keys were sticky and all worked with ease. Item size: 92x40x10mm. The function butter clearly setted, effortless to change modes. Built-in rechargeable lithium battery, continuous work around 20 hours. The controller does not come with a USB cable. Micro USB cable and most android phone chargers both will be able to charge. Can be uses as portable remote controller for mobile phone, tablet, TV box, PC remote controls, gamepad, wireless mouse etc. It controls apps and games perfectly fine if the apps and games have controller input. (The Bluetooth of devices must be V3.0 or above). Compatible with Android and PC systems. Note: Applicable on iOS system, but in limited function, it functions covering camera shutter release / music, as well as videos playback controlling.