This is the compact tabletop speaker that transforms a paired Bluetooth smartphone into a wireless business-class speakerphone. The 2-watt flat-panel speaker employs patented NXT Surface Sound technology that uses a tabletop as a resonator, producing volume and clarity that belies its size, with subtle variations in timbre depending on the material upon which it is set (e.g. wood vs. glass). Also usable as a wireless music speaker, it pairs with any Bluetooth device up to 30' away, and has volume and next/previous track controls on its top. Occupying no more tabletop area than a coffee cup, the speaker has a magnet on its bottom that allows attachment to metal surfaces if desk space is at a premium. Its rechargeable lithium battery provides up to 16 hours of talk time from a two-hour charge from a computer using the included USB cable. 1 3/4" H x 3 1/2" diameter. (5 oz.)