The Andis BTB battery operated trimmer is lightweight and easy to use. It is great for quick trimming and touch-ups. Slim design allows for trimming around the eyes, nose and easy. The unit runs on two �AA� batteries. The lightweight cordless trimmer has a ergonomic design for the ultimate in comfort. Designed and engineered in the United States, Andis also offers a complete line of quality clipper s and trim mers for consumers and animal grooming as well as a full line of wall mounted hair dryers for the hotel industry. Andis warrants its products to the original purchaser against defective material or workmanship for one years from the date of purchase. All implied warranties are also limited to one year. Andis will replace the product without cost to the consumer. The defective unit must be returned to: The Andis Co., 1800 Renaissance Blvd., Sturtevant, WI 53177. To reach a customer service representative, please call 1-800-558-9441.