CUTE 2-INCH CUBIC DESIGN - Compact and powerful SPLASH AND DUST PROTECTED - IP54 rating protects the speaker from rugged environment BLUETOOTH AND microSD COMPATIBILITY - Listen to your favorite tracks via microSD or Bluetooth v4.1 INCLUDED HAND STRING - Use the hand string to hang from places or wrapped around your hand 2 YEAR WARRANTY - Guaranteed high quality and reliability with hassle-free parts and labor warranty for two years in USA and Canada.