It depends on the size and geographical location of the fitness pool. Prices vary. Generally speaking, a year is about 1500. It might be cheaper if there are activities. Talk about matters needing attention 1. It is inevitable that water will flow into the ear when the earplug is swimming, but the earplug is light and small and easy to fall off. Beginners should not rely too much on earplugs, but should learn to relax and coordinate their movements.