This Three Axises Handling Stabilizer for GoPro Hero 3/3+/4.It has four mode: Heading following mode, Heading and Picthing following mode, Lock mode and Upside filming mode.
Features:
This Three Axises Handling Stabilizer for GoPro Hero 3/3+/4.
It is helpful to stable your digital camera and reduce unwanted shaking movement from your hand, contributing to clear image and precise focusing. 
Three axises for rotating in wide angles and different directions.
It has four mode: Heading following mode, Heading and Picthing following mode, Lock mode and Upside filming mode.
With data cable, can transfer data or adjust parameter.
It can help you to record the beautiful memories perfectly with easy. 
Support supply the power to camera.
Starting time only needs 2.5s.
Power by 2 * 18350 batteries. 
Specifications:
Model: G4
Material: Metal
Color: Golden
Minimum
Standard
Max.
Remark
Work voltage
6V
8.4V
17V
Pitch angle range
-160（down）
0（horizontal）
+160（up）
Handheld in vertical
Roll angle range
-50
0（horizontal）
+50
Heading Angle
-160（L）
+160
Handheld in vertical
Heading Angle
-50
+50
Handheld in horizontal
Pitch following ratio
2°/s
75°/s
Heading following ratio
3°/s
150°/s
Static Attitude tracking Accuracy
0.01
0.02
0.05
Gimbal in static mode
Motion Attitude tracking Accuracy
0.1
0.2
0.5
Motor overload<2G
Overload Current Protection
800mah
Package size: 28 * 12 * 9.5cm / 11 * 4.7 * 3.7in
Package weight: 800g / 1.76LB
 
Package List:
1 * Steadycam
1 * 18350 Battery Charger 
1 * USB Cable
1 * USB Connector
2 * Set Accessories
4 * 18350 Batteries
1 * User Manual(English)(camera not included)