The Altec Lansing Life Jacket 2 Bluetooth wireless speaker features great sound, voice confirmation, and an onboard microphone for clear, hands-free communication. The rugged jacket is water proof, sand proof, dust proof, shock proof, and it FLOATS! With 16 hours of battery life and power bank capability you can remotely charge your smartphone anywhere and rock out all day long. Compatible with iPhone and iPod, Android systems, computers and tablets.