7 functions just by connecting it: 

• Speed
• Average Speed
• Maximum Speed
• Distance
• Odometer
• Route Time 
• Time GPS
• With IPX7 resistance do not be afraid to go out on the road while it rains.
• 2.3 LCD screen, anti-glare and automatically illuminated.
• Send the route data to the PC and analyze it. 

In The Box

• iGS130S
• USB Cable
• Standard Bike Mounts
• User Manual

Specs

• Screen Display: 2.0"
• Dimensions: 75x48x16.5mm
• Weight: 60g
• Data Storage: 8M 250h
• Wireless: BLE5.0
• Waterproof: IPX7
• Button: 2 Buttons

Battery

• Battery life : 22 Hours
• Battery : 880mAh
• Interface : Micro USB