Feature: 1. Ideal for all dogs 5-50 kg, multi-dogs training system. 2. Transmitter battery (1* 6F22/9V), receiver battery (2* AAA 1.5V). 3. One remote control can manage 1 dog / 2 dogs / 3 dogs. 4. The range can arrive 1000 meters outside. 5. Support three different functions can be combined, as : the pulse / vibration + stimulation , pulse / + sound stimulation or vibration + sound. 6. Each receiver to the memory storage 3 group can be saved, up to three receivers with time can be saved quite 9 memory group. 7. Large LCD function training instructions on the warning label, the operation more convenient. 8. 0-99 adjustable levels of impulse/stimulation. 9. 0-99 adjustable levels of vibration. 10. Low power consumption, switch off automatically after one minute. Specifications - Collar: Size: 78 mm * 35 mm * 43 mm Weight: 97 g (with battery and strap) Power by: 2 x 1.5V AAA battery (included) Collar length: adjustable D-ring in the shape of 30-66 cm Waterproof (please do not jump into the water!) Specifications -Transmitter: Size: 11 cm * 5.2cm * 3.1 cm Weight: 100 g (battery included) Power by: 1 x 6F22 9V battery (included) Waterproof (please do not jump into the water!) Package Contents: 1 x Transmitter 1 x 9V battery (6F22) for transmitter 1 x Collar receiver 2 x AAA batteries for collar receiver 1 x Adjustable collar strap 2 x Long prongs 2 x Short prongs 1 x Test bulb 1 x Users manual.