It can be compatible with all VR 3D Glasses and Smartphones which with Bluetooth functions. It needs 2 AA batteries, the batteries are not included. It is more stable and more sensitive. 

• Very Easy to power On or Off
• Hold on for 2 Seconds to turn on and hold on for 5 Seconds to turn off
• One button press to control the smartphone’s shutter
• For Android system Phones, this controller could do the below remote controlling
• Adjusting and muting volume
• Playing video or music