Bluetooth Wireless Mini Speaker Blue for Phones, Tablets, Mp3 Players Support Phone/Laptop/Tablet/Tablet PC/Support Tf card (Mini Micro Card) Expanded BXS (Bass Xpansion System) drivers a fuller, richer low end response New, larger 45mm driver delivers precise highs for superb sound Dimensions= 60X60X50mm Frequency Response= 60HZ-18KHz Signal to noise= &gt;95dB Working Range= 10meters