Zelco Bugs Beware BBQ Light Mosquito-repelling portable light for backyard grilling, picnics Repels mosquitoes with ultrasonic sounds; won't harm pets, children Replaceable, high-intensity bulb; arm extends to 16 inches Clips onto barbecue grill or sits flat on table; folds for storage Operates on 4 D-cell batteries or with AC adapter (neither are included)