Portable Speaker Free To Go Anyplace. Easy to take Vtin portable bluetooth speaker to everywhere like going for a walking,driving, camping, enjoy beach time or pool time with its hand-size design and a "D" ring make it possible to handy to attach the portable wireless speaker to a backpack or even a lawn chair. The robust construction ensure durability for a long time use of most outdoor activities includes go for golf, a trip, get together for a picnic time and so on. 30 Hours Long Battery Life Bluetooth Speaker At the Volume Of 70%. Better than most of wireless portable speaker, this 20 watt Bluetooth speaker built-in 4400mah battery, which means you can play music up to 30 hours at the volume of 70% or 6-8 hours at the max volume with full charge. Especially suitable for going for a trip, a camp, a picnic time, a golf time, a pool party and so on. Also a perfect choice for those who like to enjoy the music from morning to the evening. IPX4 Waterproof Speaker For Pool And Beach. Means it's safe for poolside, beach, or a little rainy camp day for this wireless outdoor bluetooth speaker is splashproof and Crashproof. And can be easily connected by include iPhone 7, 6s, 6, 5, 5s, android, computer, mobile phone,ipad to walking around 33 feet. Other audio sources without Bluetooth can be connected via the included AUX cable.Note: Can not make Vtin 20W Bluetooth speaker immersion in water. 20W High Power Sound Outdoor Speaker. Vtin wireless bluetooth speaker come with 20 watt drivers, which offer impressively clear, crisp sound. Loud and power enough to fill your bedroom, office and anywhere in every time. Also allowing you enjoying a clear, well-balanced, full range listening experience, perfect for a small get together while camping, pool parties and picnic time,walking around and more indoor or outdoor activities..