Ipets iPhone Controlled Dog Training System with No Bark/Remote Shock Collar/Wireless Electronic Fence/Anti Lost Collar Bluetooth 4.0 technology training collar controlled by iphone4S/5/5S/6 (download "i.pets" in apple store) Rechargeable and waterproof receiver collar with anti-lost and electronic fence function, your dog never get lost 0-99 levels of static, vibration function for training your dog 0-9 levels of sensitivity for anti bark mode, stop dog barking nuisance