GranVela Bluetooth Speaker With Microphone (Blue) Compatible With Most Bluetooth-Enabled Devices Waterproof, Dustproof And Shockproof Speaker( But Is Not Available To Totally Immersed Into Water) USB Charging Capability:Allows You To Easily Replenish The Battery Of a Compatible Device Lightweight Design:So You Can Listen To Your Music Almost Anywhere. 10-Month Manufacturer's Warranty