It is hard to work out, but these incredible little speakers are only the size of a matchbox, which is about 2.5 inches x 1.5 inches and yet they offer fantastic sound transfer between the laptop, TV, speakers and headphones.
Features – The devices enable you to listen to TV in bed without disturbing a spouse, or to roam freely while wearing headphones without being tethered to an MP3 player or stereo. CD-quality audio is transmitted up to 30′ over the 2.4GHz band for interference-free listening. Each transmitter plugs into a USB port for charging and works for seven hours on a seven-hour charge. Includes one transmitter and one receiver, a pair of USB cables for charging, two pairs of audio cables (12″ and 24″), two neck lanyards, and two belt clips. Each transmitter 2 1/2″ L x 1 1/2″ W x 1″ D. (3 oz.) Priced at $119.95.
Source [Hammacher Schlemmer]
