MIFA F6 Bluetooth Speaker Portable Outdoor Wireless Speaker (Black) 1,Powerful Sound Full frequency double play unit+ Super large area of low frequency passive radiator, adopt top DSP 3D sound stereo chipset Super Large area of Circular low frequency passive radiator , strong bass 1.5 inch double play unit, the power is up to 7W 2,NFC quick pairing Fast and convenient NFC (near field communication technology), provide easier, safer, and faster way of wireless connection for outdoor life, do not need to search, and a touch between devices can quickly complete pairing bluetooth connection. 3,Water proof IPX4 Through special processing of horn speaker and network, it can achieve the water proof IPX4 ,effectively prevent the rain spatter, let you enjoy outdoor wildly! Dustproof IP3X In order to more adapt to the outdoor environment, the speaker mesh adopts dense metal mesh, it can have a good barrier towards to dust such as particles. 4,Anycall backgroud bluetooth Anycall bluetooth backgound mode, do not need to disconnect bluetooth, support speakers under the Micro SD card mode and AUX mode, can still be the background, you can answer calls at any time, whether in the outdoor sports or at cross-country activity. 5,All-around protection Shatter-resistant/Water proof/Dust proof Wrapped with top TPU raw materials, super waterproof, oil resistant, internal anti-corrosion processing structure, shatter-resistant, water?resistant, can be used outdoor perfectly