Esky EP-1000R-B1 1000M Range Waterproof Rechargeable LCD Remote Shock Control Dog Training Collar System (For one dog) RELIABLE AND FRIENDLY CUSTOMER SERVICE ready to respond within a 24 hour time frame. 30-Day Money Back Guarantee, 12 Month Replacement Warranty and Lifetime Support Guarantee. Extremely long distance remote: This Esky EP-1000R-B1 dog shock collar can work within 1,000m (approx. 1093.6yd) Not two but three! This remote electric dog collar supports up to 3 collars in one system, the most advanced RF technology on the market. Rechargeable and waterproof (collar-receiver), 99-level stimulation for each mode Multiple combinations among three modes (static shock, vibration, beep).