At first glance gadget Jumbo Sized 500 XL is a conventional in-ear headphones. But if it is not aware of their real size. In fact, a complete sound system, made in the form of headphones, so that the actual size of Jumbo Sized 500 XL is about 500 times larger than the original. The gadget can be easily connected to any audio source, such as a computer or MP3-player. The power may be supplied from the battery, USB-port of the computer or AC adapter. The cost of large headphones Jumbo Sized 500 XL - about 60 US dollars.