Unwanted behaviour is interrupted by a short burst of unscented spray which is activated by the dog owner using a Remote Transmitter. Safe and easy to use, this remote training system can be used with dogs of all sizes and includes a tone only option in addition to eight levels of spray. Includes 1 x Citronella scent can. This system has a range of up to 275 metres. It has 15 levels including 8 levels of spray stimulation and 7 levels of tone + spray stimulation. It is 2-dog compatible (extra receiver collar - sold separately). Fits neck sizes up to 56 cm. Suitable for small, medium and large sized dogs. Manufacturers 3 year guarantee.