Upgraded Compact Portable Bluetooth 5.0 Wireless Bike 5W/8W Stereo Speaker, IP67 Waterproof Outdoor &10h Play Time, Advanced Class D Amplifier & Built-in Weighty Bass (8W with Speedometer)

【Designed for Sports Enthusiasts】2-in-1 design for use in bicycle and backpack. Just 4.41 inches in diameter, take this outdoor speaker as a perfect companion to rock climbing, cycling or hiking, and be prepared to take your experience up a notch. Attach the metal hook to handlebars or backpacks, it’ll hold tight every time. It also features adjustable bike holder and thick gasket, which enables cyclists to enjoy music in their bumpy journey without worry about their fallen speaker. 【100% Waterproof & Dustproof】IP67 means this portable speaker has unparalleled water and dust protection. Waterproof technology, plus fabric-covered exterior, will keep it safe and in good working order if it falls into the water, even if it is soapy or salty. So it will not be influenced even in wild weather, perfect for riding, beach, pool, bathroom and other indoor or outdoor activities. 【Surprising Weighty Bass】 Built-in high quality weighty bass technology, this bluetooth speaker will reward you with more extension bass. With its versatility in handling different genres, you will be surprising by its resoundingly deep bass. When you get this little bluetooth speaker, you can enjoy hands free phone calls for safe driving, or while doing chores, or even in the shower at the same time. With MicroSD card, you can play your favorite songs 【Stronger Holding Case & Mount Firmly】Patent & special design holding case & double moulds case of speaker can secure the speaker firmly to the handlebars. It won’t flopping around the handlebar. It never fall off during cycling or even when go into a speedy bump. Totally get rid of falling off hassle. Carabiner and bicycle bar mounter with bracket are provided for two uses in carrying it over. 【Double Up, Now in Stereo】 Ready to double the fun? The wireless stereo technology allows you to pair your speaker to a second Bluetooth speaker, pumping up your auditory experience with bigger sound and stereo effects. With the newest bluetooth 5.0, you can use this bluetooth speaker at home, office, car, outdoors etc. It supports any devices via Bluetooth or Aux line such as iPhone, iPad, Samsung, PDA,Computer,Macbook, MP3 players,Laptops etc.