Before speakers were invented, singing messengers reported box scores and dance chaperones doubled as jukeboxes. Add less humiliating background music to your life with today's Groupon: for $15 you get the Shox Mini Speaker System by Genumark (a $29.95 value).

The winner of the prestigious Red Dot Design Award of 2008, this pocket-sized speaker employs its patented virtual bass system technology to generate disproportionately colossal sound. The portable disco dispenser is compatible with all iPods, laptops, desktops and PDAs, and at the size of a golf ball it can entertain a populous wine and cheese party and then cork the decanter. The Shox system can power its lithium ion rechargeable battery upward of 500 times on any computer or USB adaptor, accruing a playback time of five to eight hours for a soundtrack that can accompany a double feature film or last long enough to serenade lovers in different time zones. The black, accordion-resembling pod is not only one of the smallest rechargeable speakers in the world but is also eco-friendly and RoHS (Restriction of Hazardous Substance) compliant, and revellers can return their go-go gadgets to any store location to recycle its pill-size parts.