here is some video about g4s from website ,for reference only

https://www.youtube.com/watch?v=K-5g9vd_6EI

https://www.youtube.com/watch?v=Ny3AoHpgEXQ

The FY Feiyu Tech New Arrival G4S 3 Axis Handheld Steady Gimbal 360 Degrees Coverage with Joystick for GoPro 3/3+/4 is the upgraded version of FY G4. It features 3-axis, 360-degree pan, tilt, and roll for full coverage. Newly designed quick-access clip improves camera attachment efficiency. Built-in 10pin mini-USB interface is capable of charging GoPro camera and video output. Streamlined single-button control scheme replaces old mechanical power button for fast operating modes switching and power-on. 4-directional control stick simplifies the operation of camera angle adjustment. Isn’t it brilliant? Don’t miss out!

Features

• 3-axis, 360-degree pan, tilt, and roll for full coverage
• Newly designed quick-access clip improves camera attachment efficiency
• Built-in 10pin mini-USB interface is capable of charging GoPro camera and video output
• Streamlined single-button control scheme replaces old mechanical power button for fast operating modes switching and power-on
• 4-directional control stick simplifies the operation of camera angle adjustment
• Seamless interaction with the GoPro data interface, direct access to GoPro’s storage data
• 1/4’’ tripod mount built-in to the bottom of the gimbal for wider compatibility with accessories
• Support GoPro back LCD display screen

Specifications

Package Includes

• 1 x Handheld Gmbal
• 1 x Charger
• 4 x Rechargeable Batteries
• 1 x USB Cable
• 1 x USB Adapter
• 2 x Extended Screws