INTCROWN Dog Training Collar Rechargeable LCD Remote Shock Control with Blue Backlight Screen with 100 Level of Vibration + 100 Level of Static Shock Range About 330 Yards The dog training collar is WaterproofBlue LCD displayRange up to 330 Yards, Expandable to 2 dogs (need extral collar) 4 functional modes, vibration, light, beep and static shock; 100 different adjustable levels of vibration and static Durable and adjustable nylon strap, about 14 to 23 inches Rechargeable LCD digital remote control electric training collar,Remote control electric shock devices, Vibration and Shock Electronic Electric Collar with Upgraded-blue Backlight Screen One year warranty