C400 Features: -LCD display. -Flash impulse. -Beeper function. -Continuous impulse. -Fully waterproof collar. -Magnetic on / off switch. Waterproof: -Yes. Product Type: -Training Collar. Range: -0-200 Yards/201-500 Yards/501-1000 Yards. Pet Category: -Dogs. Color: -Blacks & Grays. Generic Specifications: -Electronic training system for controlling up to 2 dogs with a working range of 550 yards. Dimensions: -2.1'' H x 2.1'' W x 1'' D. Overall Height - Top to Bottom: -2.1". Overall Width - Side to Side: -2.1". Overall Depth - Front to Back: -1". Overall Product Weight: -1.2 lbs.