Outdoor Tech OT1800 Turtle Shell 2.0 - Rugged Water-Resistant Wireless Bluetooth Hi-Fi Speaker (Electric blue) Turtle Shell 2.0 uses Bluetooth to wirelessly stream Hi-Fi audio anywhere you go from your smartphone or other device Shock-proof, dust-proof and water-resistant, the Turtle Shell can handle all the elements, and look good doing it. Hashtag styling. Rechargeable Lithium Ion battery gives you a massive 16 hours of party time. Maybe you should plan on a nap. The Turtle Shell 2.0 will outlast you. Don't get burned by those barely portable big brick wireless speakers INCLUDES: USB charging cable, 3.5mm to 3.5mm cable, signature ODT carry pouch, User Manual, and some stickers (yay)