Will this air pump work for a bike?
Sorry, this is air pump for sports balls, it can not work for bicycles or other tires.
Are the preset ball modes adjustable?
Yes, the preset ball modes are adjustable. You can adjust them with the "+" and "-" button. Also, they will remember the adjusted value on the next time when you use the pump.
How long does it take to charge it when it is new?
Requires 2 hours charging before first use.
What are its advantages over a manual pump?
Compared with manual pumps, our electric ball pumps are more beautiful and portable. Not only can you inflate multiple balls anytime, anywhere, saving time and effort, but you can also set and monitor pressure, making it more specialized.