General description This rechargeable dog training collar is designed for effective training with a range of up to 800m, making it suitable for both indoor and outdoor use. It features four effective and harmless modes: Sound, Light, Vibration (adjustable to level 99), and Electrostatic Shock (adjustable to level 99). The training methods can be tailored to your dog's weight and personality, helping to correct bad behavior efficiently. Technical specifications Range: Up to 800m (1000m in open areas) Battery life: Lasts up to 20 days on a 2-hour charge Collar size: Adjustable from 16 cm to 62 cm Waterproof rating: IPX67 Compatibility and accessories Remote control can sync with up to 3 collars for training multiple dogs simultaneously Only one collar included Installation Easy to adjust collar size for a comfortable fit Usage Built-in LED light for visibility in dark environments Automatic power-saving mode to extend battery life when not in use Other information Plug type: EU standard