Portable Bluetooth Speaker Box, MakeTheOne Shockproof and Waterproof Mountain Bike Bicycle Wireless Speaker with HiFi Bass for iPhone Samsung Smart Phone and Tablet (Black) Plays Music via Bluetooth, MicroSD Card or AUX Line Goes-Anywhere Bullet Cylinder Shape & 3.5" Size 10-Hour (Mid Audio Range) Built-In Rechargeable 820mAh Battery 3.5-Ounce Weight Makes It Perfect for Joggers Etc. Enjoy perfect sound anywhere anytime: for Outdoor Sports Travel Road Bicycle Cycling Climbing Camping Hiking Running Fishing