Small, big sound: This ultra-portable, waterproof Bluetooth speaker is small but surprisingly loud. The integrated metal carabiner clip protects the speaker from damage, clip it with the built-in carabiner and hit the play button for an instant pop.PORTABLE DESIGN: With 2-5 Hours Playtime - With built-in rechargeable lithium-ion battery, battery life up to 10 hours, plus metal carabiner, so you can easily hang it on your clothes, backpack or belt loop, Whether indoors or outdoors, you can listen to pleasant music.One touch to talk: Noise Cancellation and Wireless Streaming - Wirelessly stream high-quality sound from your smartphone or tablet for clear voice during calls, plus noise and echo cancelling speakers, just a touch of a button, You can receive clear calls from the speaker.Fearless of harsh environments: waterproof and durable - no need to worry about rain or spills, the waterproof design protects your music journey, you can even submerge it in water. Plus, the improved durable fabric material and sturdy rubber shell protect it on all your outdoor adventures.