The Dogtra iQ Plus Remote Trainer is one of the smallest, yet most powerful e-collars to be introduced in years. Gently correct your dog with the low to medium output of the Dogtra iQ Plus Remote Trainer. Built to satisfy all of your pet-training needs, this unit boasts an ultra compact water-resistant handheld transmitter and a fully waterproof collar with a range of up to yds. This unit can be made into a two dog system with the purchase of an additional collar. Long-lasting, rapid-charge batteries. The Dogtra iQ-Plus is a powerful pet training designed for small to medium sized dogs. The iQ Plus has three different stimulation types: Nick, Constant, and non-stimulating pager/vibration.Nick is a momentary burst of pre-measured stimulation. You also have the option of giving a constant stimulation for up to eight seconds. The pager functions causes the collar to vibrate without electronic stimulation. In addition to these great features, the Dogtra iQ-Plus e-collar is built for dogs over 10 pounds and is a terrific choice for dogs with mild temperaments. The iQ Plus is a fully expandable training system, allowing you to train 2 dogs using one handheld remote. Package Contents: One Transmitter One Receiver with 5/8"contact points Expandable up to 2-dogs with an IQ-PLUS-RX Collar Battery charger and splitter cable Lanyard Owner's manual Features: EXPANDABLE (must purchase 2nd dog receiver/collar) Reduced receiver/collar designed for smaller dogs Precise stimulation level (0-100) 400-yard range 'Nick', 'Constant' and non-stimulating pager 2-hour quick charge Fully waterproof collar/receiver and water-resistant transmitter LED battery life indicator More Information: We believe basic obedience is essential for every dog, regardless of the size or breed. The iQ Plus combines many of the features found in full size remote trainers, in a compact form, great for dogs of a variety of sizes. Our small, yet powerful e-collar is built for dogs 10 pounds and up, and is great for dogs with mild temperaments. The iQ Plus is also fully expandable up to a two-dog system, using one handheld remote. A 400-yard range provides consistent communication with your dog's fully waterproof e-collar. Both the handheld remote and the receiver/collar come with rechargeable Lithium Polymer batteries that are fully charged in 2-hours. The system also comes with a Nick, Constant, and our patented non-stimulating Pager vibration, much like the vibrate feature on cell phones. The iQPlus is the tool that many professionals trust when shaping basic obedience in companion dogs.