I found it difficult for 8 year olds to activate

My first one came and I used in training that eve. It made swimmers focus and think about what they were doing . I got it for my juniors but I feel my seniors had benefited from it more.

Squeezline

I have found that many people know this invention and innovation is the best for swimmers. Good voice can be used to remind us to correct the irregularities of the action in time, so that we swimmers need to have standard and normative actions every time. It’s easy to become an excellent swimmer if we can use this, and I shall give the product designer and inventor a big thumbs up. Your invention is absolutely outstanding for swmmers. It's not just because the product has a functional invention advantage. After continuous optimization, it has better reliability and better sound effects. There is also a small transparent plastic packaging box that allows us to put it in the box when we are not swimming, and will not be accidentally squeezed. Necessary power consumption to keep the battery durable.

We are looking forward to implementing this more, but I am pleasantly surprised at initial feedback.

We're a mid-major DI and we're always looking for ways to improve technique and habits. I expected to see some of our lower-tiered swimmers improve using the Squeezline, yet it was our most elite that really took it to a new level. I noticed a better streamline shape which quickly translated to greater velocity at break-out. It quickly led to further conversations about efficiency. It was pretty darn awesome!