Ipets PET619-2 330 yd Remote Rechargeable & Waterproof Dog Electric Training Collar with Tone/Vibration / Static Shock E-Collar for 2 Dogs 330 yard range remote training collar, can control up to two receiver collars. Remotely power on/off collar receivers from remote transmitter Compact receiver/collar designed specifically for smaller dogs, from 10 lbs. or larger with a collar size from 7 to 26 inches Easy to use, adjustable Intensity Dial offers precise stimulation level (0-100) of Vibration / Static Stimulation; Standard Tone mode Rechargeable transmitter and receiver with 2-hour rapid charge lithium batteries; Fully waterproof collar receiver and water-resistant transmitter Swap quickly between collar receivers with dog selector switch. Power saving design to extend battery life and get more use off one charge