Archeer Portable Bluetooth Speakers Outdoor Waterproof Dustproof Wireless Speaker with Bass and Microphone for Sport Cycling Camping Hiking, A210 Blue Full, High-Def Sound: Enjoy an impressively crystal clear sound quality and robust bass through Dual 5W audio driver and passive subwoofer. Daylong Playtime: Equipped with 1500mAh Rechargeable battery. Enjoy 12 hours music at 80% volume; up to three times longer playback time than similar-sized portable speakers. IP44 Splash & Dust Resistant Design: As a Outdoor Speaker, Archeer A210 speaker is designed to be Waterproof, Shockproof, Dust-proof, Scratch Resistant to make it more adaptable for both indoor and outdoor exercises. Crafted with Stylish Appearance and Solid Performance: Universal compatibility for iPhone, iPad, iPod, Samsung Galaxy S6 Edge+, Note5, other Android Smartphones & tablets. It also fits most MP3, MP4 players and media players via 3.5mm audio port. Intelligent Energy Management: Automatically OFF after 10 minutes when no music being played from the connected device. Faster recharge with included Micro USB cable.