For dogs 5lbs and up with neck sizes from 6-28"5 adjustable levels of static correctionTone-only for trainingExclusive ReadyTest and PerfectFit Test so you know your collar is ready and working every timeWaterproof receiver collarRechargeable Receiver collar charges in 2-3 hoursCompatible with PetSafe Pawz Away pet barrier avoidance productsIncludes short and long contact points for short or long-haired pets