I've had 4 or 5 of these in the last 3 years or so. If you use them every day like I do, they will fail because they lose their ability to make good contact and produce sound. Uncomfortable as they show how to wear it around the head, just too tight. I put it around my neck but my neck is only 14.5 inches long. It will not be comfortable on a large neck. Comes with a variety of ear tips so you should be able to find one that fits your ear canal securely and it's cheap enough that I just buy a new one if I need to, otherwise it's too boring for swimming. However, now they seem to have added a 1 year warranty which would be good for general swimmers and I'll see how well they do with that.
M-Player IPod Nano 3Rd Generation (8GB Portable Audio & Video
44 Review
MP3 player DIGMA B4 8 GB, black
29 Review
MYMAHDI 80GB MP3 Player With Bluetooth, WiFi And 1TB Max Support - 4" Touch Screen Music Player For Spotify, Pandora, Audible And Deezer
30 Review
MP3 player DIGMA Z4 16GB 16 GB, Bluetooth, black/grey
44 Review
KEiiD Bluetooth Stereo Shelf System With Retro CD Player, Speakers, FM Radio Receiver, USB, AUX, Bass/Treble EQ, Wooden CD Music Bookshelf System For Home Audio
28 Review
π΅ Oakcastle BX200 Boombox, Portable CD Player and FM Radio with Bluetooth Stereo Speakers and Multi-Connection Capability
9 Review
SINGING WOOD Boombox Portable Bluetooth
9 Review
KEiiD Wooden Retro CD Player With Bluetooth, FM Radio, USB AUX Inputs, Speakers And Adjustable Bass/Treble For Home Stereo System And Boombox
27 Review