Fosinz Dog Remote Shock/Vibration Training Collar with 100 Levels of Vibration Rechargeable and Waterproof Collar with Durable and Adjustable TPU Strap 4 MODELS STATIC SHOCK BEEP LIGHT:This training collar has 4 models to choose to train your dog:static shock,vibration, beep, light.It has 100 level of Vibration & Static. 250 METERS REMOTE RANGE:This remote dog training collar is with advanced RF technology and range up to 250 meters. Immensely Popular Collar used by Expert Trainers & First Time Pet Owners; can be used to help correct barking, walking, leash training, sitting, aggression, or other behavioral obedience. TPU STRAP:Durable and adjustable TPU strap (length from 18-68 cm) RECHARGEABLE WATER RESISTANT DESIGN:Completely rechargeable and water resistant design with the receiver and transmitter allow dogs to swim in the water for 2-3 hours. POWER SAVING DESIGN:Power saving design with automatic standby and memory function.