Monstercube Wireless Bluetooth Bicycle Speaker with Bike Mount , Outdoor Shockproof Cycling Bike Music Speakers with TF Card and AUX Line-in Cord - Black ESPECIALLY DESIGN FOR BICYCLE: Bluetooth speaker with subwoofer and BAS technology + Bike Mount, easy to install, control the speaker and enjoying music when riding; Water-resistant, shockproof and dustproof designed; New design add microphone for picking up calls--hands-free! Bluetooth 4.0 Speaker works with all Bluetooth-enabled devices: Compatible with such as iPhone, iPod, Phone, Samsung, LG, Sony, Smartphones, Android Devices , Laptops, Tablet, PC and MP3 Players and other bluetooth-enabled devices. 2*3W Drivers Stereo generates much louder penetrating sound that produces a "room filling audio" projection; Built-in 2000 mAh rechargeable lithium battery offers up to 14 hours playing time at 80% volume without led lights; Only 3 hours to full charge it by the included Micro USB cable. 4 Working Modes to play music: Bluetooth / TF card / FM / AUX, enjoy perfect sound anywhere anytime! Broad Compatibility: Connect with bluetooth-enabled device (versions 2.1 and above) or just plug in with the included AUX cable to start your tunes, quickly pairs and within an excellent connection range.