Feature:<br />1. It has extremely long remote control distance up to radius 200 meters.<br />2. Adjustable Level from 0 to 100 levels correspond to 0 to 200 meters.<br />3. Waterproof， chargeable， durable receive collar.<br />4. If the dog exceeds the range of activities that has been set， the receiver will start its training function automatically， which will remind the dog to return to safe area. Firstly. vibrating 3 to 4 seconds at first and then the punishment of electric shock. If the dog continues to go ahead， vibration and electric shock will be cycled once again. Afterward， the dog won''t go ahead when it feels the warning of vibration.<br />5. Multiple receivers are acceptable to work with this system at the same time.<br />6. Digital display support. Easy to know which the levels is.<br />7. Three different electric shock levels "strong"， medium"， "weak"， which can be set freely.<br /><br />Specifications:<br />Type: 1 Dog System， 2 Dog System， 3 Dog System<br />Plug: AU/US/EU/UK Plug<br />Color: Black<br />Range: 200M<br />Package Dimensions (L x W x H) : 25.5 x 23 x 6 cm<br /><br />Packing List:<br />1 Dog System<br />1 x Transmitter<br />3 x Collar Receiver<br />1 x Test Light Tool<br />4 x Screws<br />1 x User''s Manual<br />1 x Charger<br />1 x USB Cable<br />1 pair Conducting column