WEIGHING IN at under a third of an ounce, the weight of two nickels, the Plantronics Discovery 640 Bluetooth headset won't leave you feeling lopsided when it is in your ear. Measuring just 2 in. long, the cylindrical headset fits in the ear with a rubberized ear tip, with or without an ear hook. The cylinder contains a microphone, so there's no boom in front of your mouth. The headset provides five hours of talk time between charges, or up to 15 hours using a pen-sized pocket charger powered by an AAA battery.

The headset includes four charging adapters for charging via cell-phone chargers or directly with its own small wall charger. The suggested retail price is $149, but retail outlets usually offer it for about $80. Contact Plantronics Inc., Dept. FIN, 345 Encinal St., Santa Cruz, CA 95060, 800/544-4660, visit www.plantronics.com or www.freeproductinfo.net/fin, or circle 199.