The Conceptronic Wireless Bluetooth Waterproof Speaker is a funky Bluetooth multimedia device which connects to any Bluetooth mobile phone, PDA, laptop or PC. With a tough but soft gel-plastic outer shell protecting the sophisticated electronics inside, the speaker is waterproof, light, and suitable for low-power USB devices. Finished in a stylish and compact design, this ultra-cool little speaker is the ultimate music companion for travel, sports, the beach, parties, or just life in general.• IPX5 International Waterproof Standard• Bluetooth 3.0 wireless connectivity• Plug and play music from Micro SD/TF card• 400mA rechargeable battery built-in. Sustains 3-5hr operation