Speculation:
Item Type: 14 inch Teleprompter
Model No.: TP13A
Material: ABS, aluminum alloy
Beamsplitter Transmittance/Reflectance Ratio: 70/30
Focal Photography: more than 24 mm / 0.94 inches.
Compatible tablet size: up to 11 inches
Compatibility: for iOS, for
Control method: APP, BT remote controller
Remote control battery: 2 x AAA battery (not included)

How to use:
Simply install and use.

Packing List:
1 x Teleprompter.
1 x Smartphone Recording Panel
3 x Foam Rings
1 x Tablet Phone Clip
1 x Remote Controller
1 x Magnetic Smartphone Clip
1 x cleaning cloth.
6 x Screws
1 x Screwdriver
1 x user manual (English language not guaranteed).

Notice:
It is not compatible with the wide angle lens, and the focal length of the lens should be greater than 28mm.