---
title: "Mike Chen (@poolside-notes) | Hashnode"
description: "Masters and triathlon training notes. Casual swimmer working on sets, open water, and how to actually hear music in the pool."
url: "https://hashnode.com/@poolside-notes"
---

@poolside-notes

# Mike Chen

@poolside-notes · Joined October 2026

Masters and triathlon training notes. Casual swimmer working on sets, open water, and how to actually hear music in the pool.

### [Why “waterproof Bluetooth” still dies mid-lap — and three ways people actually listen while swimming](https://poolside-notes.hashnode.dev/why-waterproof-bluetooth-still-dies-mid-lap-and-three-ways-people-actually-listen-while-swimming?utm_source=hashnode&utm_medium=feed)

If you’ve ever bought “waterproof Bluetooth earbuds” for the pool and lost the music the second your head went under, you’re not crazy — and it usually isn’t a fake listing. Water absorbs 2.4 GHz Blue

2 min read · [poolside-notes.hashnode.dev](https://poolside-notes.hashnode.dev/why-waterproof-bluetooth-still-dies-mid-lap-and-three-ways-people-actually-listen-while-swimming?utm_source=hashnode&utm_medium=feed)

[Oct 14](https://hashnode.com/posts/why-waterproof-bluetooth-still-dies-mid-lap-and-three-ways-people-actually-listen-while-swimming/6acf9492a27cc0a669ac7f07)