Material: Aluminum alloy.
Cameras interface: Universal 1/4 screw.
Max weight: About 1.0kg.
Closes-extends: About 42.5-125cm.
Screw mouth : Universal 1/4 screw port
AB Shutter 3.
Bluetooth Version 3.0.
Transmit frequency: 2.4GHz-2.4835GHz.
Communication distance: 10m(30FT).
Battery life: CR2032 x1 cell about 6months under working in 10 times a day.