A revolution in portable audio technology, the X-mini is the Worlds first pocketsize speaker with high quality tweeter, patented vacuum bass, in-built Lithium-ion rechargeable battery providing up to 8hrs run time. Includes retractable union cable with plugs. Ideal to replace earphones on iPod, MP3, PDA, Laptop, Mobile Phone, Games and even the ancient walkman type players. Size 52mm dia x 35mm hi. 52gm. Sound Beyond Size