Dog Training Collars, AOBILE(TM) [PetTrainer] Rechargeable Wireless Dog Shock Collar Remote Dog Trainer Waterproof Dog Collars This dog training collar is easy to use, ergonomic transmitter. 4 training modes: static shock / vibration / beep / light. Waterproof dog collar can be used in bad weather and keep the collar against wet inside. Rheostat dial that allows for gradual increases in stimulation intensity with no jumps between 0-100 levels. Two-dog model allows the remote dog trainer to control two dogs from one transmitter.