General description This rechargeable dog training collar offers 4 effective and harmless modes: sound, light, vibration (adjustable to level 99), and electric shock (adjustable to level 99). It is designed to adapt training methods to your dog's weight and personality, helping to correct bad behavior effectively. Technical specifications Range: up to 800 m (1000 m in open areas) Battery life: lasts up to 20 days with a 2-hour charge time Collar size: adjustable from 16 cm to 62 cm Waterproof rating: IPX67 Compatibility and accessories Remote control can synchronize with up to 3 collars, allowing training of up to 3 dogs simultaneously Only one collar is included Installation Easy to set up with the included remote control Usage Ideal for training small and medium dogs Built-in LED light for visibility in dark environments Automatic power-saving mode to extend battery life when not in use