The 2300NCP Advance is a multipurpose e-collar, designed for advanced level pet training, competition training, Police K-9 work or any type of hunting where a 3/4-mile range is needed. It also features 2-hour rapid charge batteries, fully waterproof Receiver and Transmitter. Package Contents: TransmitterReceiver with 5/8"contact pointsBattery charger and splitter cableTest lightOwner's manualCarrying caseFeatures: Precise stimulation level (0-127)3/4 mile range'Nick', 'Constant' and non-stimulating pager/vibration2-hour rapid charge Lithium Polymer batteriesFully waterproof collar/receiver and transmitterLCD screen displays exact level of stimulation even in dark or low light conditionsThree bar battery life indicatorOther Details: Warranty - 2-Year Limited Lifetime WarrantyPower - Low to HighRange - 3/4 MileBatteries - Lithium PolymerLCD Screen - YesCarrying Case - YesExpandable - No, available in 2-dog unit (2302NCP)Pager Mode (Vibration) - Yes