Built-in 5200 mA mobile power; can give mobile phones and tablet PCs directly charge; in outdoor use to play music up to 30 hours waterproof IPX4 dust 6</br>Using 5Wx2 neodymium speaker driver and wOOx system; just from the small speakers you can enjoy the extraordinary music you expect. Powerful sound shocking clarity and deep bass lets you enjoy wonderful music anytime anywhere.</br>MULTI-FUNCTIONAL AND EASY TO USE - This is not just a Bluetooth speaker but a multi-functional gadget which lets you charge your mobiles or other devices through its USB port and helps you take hands free calls through its built-in high quality microphone. The Bluetooth speaker is very easy to use as it has one-touch switches to help you switch between music control the volume and take calls. control the volume and take calls.</br>PORTABLE DESIGN - The speaker can be easily connected to the built-in Bluetooth or with an Aux cable; The speaker has a strong and durable body with silicone layers on top and bottom to provide it a firm grip on most surfaces.</br>100% RISK-FREE SATISFACTION GUARANTEE - We offer you 100% risk-free satisfaction guarantee. You can buy with confidence; no questions asked. We are sure that you will love its incredible design and performance. Very suitable for parties or parties. Enjoy a stunning stereo