More on Amazon.com : http://www.amazon.com/gp/product/B00NS0OMVM?tag=thefatkidin06-20
BOOM Swimmer Waterproof Wireless Bluetooth Speaker - Black
Rechargeable battery last up to 8 hours at full volume
IPX7 Waterproof rating down to 1m for 30 minutes
Connect to smartphone or tablet with Bluetooth
Flexible tail offers variety of placement options