Grandmax SPKR-GR1 Go Rock Mini Portable Speaker for iPod/MP3 Players and Laptops, Red

Grandmax SPKR-GR1-RD Go Rock Portable Speaker provides monster sound in a small package. Simply twist open to expand the acoustic chamber for enhanced audio and crystal clear sound. All connections are retractable, so there are no messy cords to untangle. The built-in long-life lithium battery lasts for hours and quickly recharges from any USB port with the supplied charge cable.