Rechargable LCD Remote Control Dog Training Shock Collar with 100 Level Shock and Vibration With 100LV Level 300 Yard 998DR Provides a professional 100 level shock and 100 level vibration with battery powered LCD digital remote control and training collar. Convenience of easy-to-read LCD screen shows the stimulation level. Over 3,000 different identity codes to prevent conflicts with other e-collars. The system can be used for 1 or 2 receivers.(the additional receiver must be the same type as your previous one and purchased from us) This product is for pet training only , by training,the pet can understand the intention of its owner.Desirable results can only be achieved after a period of training. Following the correct operation instructions,you can effectively train your pet and make it a docile and adorable creature.