This new dog training shock collar and containment system was manufactured by the same factory who made successful model EasyPet EP-380 remote dog training collar system and EasyPet EP-8000 electric dog/pet containment fence system. The KoolKani KK9000 combines the best of both EP-380 and EP-8000. The new product is of top quality with affordable price. You will find it convenient in remote dog training and dog containment. As soon as electric fence system is set, the combo is ready to go. Whenever after training your dog with the remote, you can carry your remote with you and leave your dog in the electric fence without removing its collar. While your dog freely roams in fence, you can still use the remote controller to send commands remotely. About the remote controller: Size: L*W*H: approx 12cm*5cm*3cm (L*W*H, length includes antenna);Weight:60g/2.2oz; Power: Rechargeable with replaceable battery(charger output: 5V1A) About the transmitter box: Size: 14 x 9 x 2.5 cm; Weight: 105g; About the collar receiver: Size: 6 x 3.5 x 3.5 cm (approx.); Weight: 50g;Easy to switch on/off. Package Contents: 1 x Rechargeable remote controller/handset with large LCD display for remote dog training; 1 x Indoor wall-mounted base transmitter with large LCD display for electric fence system; 3 x Rechargeable collar receivers with quality TPU collar straps for 7"-24" neck size (You can also use your own strap as long as it does not exceed 2mm in thickness & 17mm in width); A set of longer metal prongs included in small poly bag for long-haired breeds; 3 x Test bulb for testing static pulse stimulation (for testing purpose only, not to be used when the collar receiver is on the dog); 1 x 23-gauge Boundary wire of approximately 150 meters; 20 x Training flags; 2 x Charger power plug (output 5V DC 1A); 1 x Charger power plug (output 12V DC 1A) 1 x User’s manual (English).