Bark Stop Remote Electric Shock Waterproof Dog Training Collar Vibrate No Bark For Training 2 DogsProducts Feature1.Newly improved with smart，easy-to-use and effective Pulse Static Corrections.2.Chargeable remote transmitter and receiver collar.3.Rechargeable Waterproof Receiver collar your pet can swim in the water.4.100 levels of vibration.5.100 levels of static shock (optional).6.The levels can be altered by pressing UP & Down button.7.In beep mode，it activates a tone on the receiver.8.In LED light mode，it activates a flashing green LED light every one second.9.Power save:The receiver collar will go into deeply sleep if no operate for 5 minutes. And any movement will activate the receiver.The transmitter will go into STANDBY MODE if there is no operate after 2 minutes and go into deeply sleep after 5 minute， press any button except LED light button can activate the transmitter from deep sleep mode.10.The system can be used for 1 or 2 Receiver Collars.11.Two pairs of metal prong (short/long) to suit dogs with varied fur thickness.Kindly note:Do not use this product if your dog is aggressive， or if your dog is prone to aggressive behavior.A low battery may cause intermittent operation. DO NOT USE if you suspect a low battery.DO NOT leave the collar on your dog for more than 12 hours per day.If possible reposition the collar on the pet's neck 1 to 2 hours.Never Perform set-up procedures when the collar is on your dog.Read all of instructions before using this product.Common Weight of dogs:1.Large Dog:Body Height above 61CM，Weight above 40KG.2.Medium Dog:Height 40.7-61CM，Weight 11-30KG.3.Small Dog:Height 25.5-40.7CM，Weight 14-10KG.Package included1x Remote Transmitter.2x Receiver Collar.2x Adjustable TPU Belt.1x Resembling Splitter Cable.1x USB Cable.1x Charger.1x Testing Bulb.8x Contact Points.1x User Manual.