Sandproof, mudproof & waterproof (IP66) Shockproof Rubberized cover Floats Built-in microphone Hands-free speakerphone 3.5mm aux input Digital volume control Pairing button On/off switch Play/pause button Skip forward/back button LED pairing indicator Charge indicator Built-in rechargeable battery Micro USB port for battery recharging Wireless range: 60ft Up to 4 hours of play time Up to 10 hours of play time at 50% volume Includes 3.5mm audio cable, micro USB to USB cable, detachable carabiner clip, 90-day limited warranty & user's guide Blue Taking music on your adventures is a must. Now theres a speaker as tough as you for all the bumps (shock proof), spills(IP67rated) and falls (sand/mud proof and floats) that happen along the way. Just grab it and get going. The included carabiner makes taking it along easier and with Bluetooth 5.0 you'll never miss a beat. The adventure is on!