Life Mounts Weatherproof Bluetooth Backpack Speaker - Hands-Free Music (Black) Bring Your Music With You All the Time Without Having to Hold Your Phone Perfect for Camping, Hiking, Beach, Bike or School Syncs With Any Bluetooth Device for Convenient Hands-Free Music and Phone Calls Splashproof, Shockproof and Powerful 5W Speaker Powered by an Efficient Rechargeable Battery Multi-Position Carabiner Clip Mount for Easy On/Off Plus Two BONUS Mounts for Even More Options