Red-Hot best SELLER! 300m Remote Electronic Shock Dog Collar Training 300m Remote Electronic Shock Dog Collar Training 1. Patented design and certificate with CE, RoHS, R&TTE and FCC. 2. High quality nylon strap’s length adjusts from 13’’ to 22’’, effective fit dogs from 10 to 120 pound dogs. 3. Four modes: static shock/ vibration/ beep/ light. 4. 100 levels of vibration & static (optional). 5. Waterproof and Range up to 300m. 6. The system can be used for 1 or 2 receivers/dogs. 7. Easy to use and ergonomic transmitter (Length: 8cm, width: 4cm). 8. Featured power saving design and memory function. 9. Big LCD displays all instructions. 10. No external antenna on the collar. 11. The most effective and safest system for training pets.