Portable Bluetooth wireless speakers designed for outdoor use is a growing accessory category, especially among younger, digital-savvy hunters. But the speakers also work for the older set who would like to listen to the big game while in deer camp. The Kicker Bullfrog BF400 (left) offers 20 hours of entertainment per charge. It also can withstand exposure to sand, dirt, water, rain, and snow. The smaller BF100's compact design and lightweight build make it perfect for throwing in a backpack. It is also completely waterproof and can float if knocked overboard. Battery life is 12 hours. The BF100 also includes hands-free speakerphone capabilities. In addition, the speakers can be linked to provide true stereo performance. SRP: $399.95, BF400; $199.95, BF100. (kicker.com)