Long range, rugged, durable, and waterproof collar for years of maintenance-free service. The QTC-XL collar uses our state of the art extended range, long life, lightweight (approximately 7 ounces) transmitters sealed in a rugged ABS plastic housing. You can expect to receive up to 50 percent more range than most other brands of beep beep collars on the market. These collars will give up to 6 years of maintenance free service. They also use a heavy gauge stainless steel cable antenna that is virtually unbreakable.