General description This IP67 Waterproof Rechargeable Dual Dog Training Collar allows you to train two dogs simultaneously with a range of up to 800 meters. It features adjustable levels from 0 to 99 for electric stimulation, vibration, light, and sound, making it suitable for dogs of all sizes. Technical specifications Range: Up to 800 meters Frequency: RF434 MHz Collar size: Adjustable from 16 to 62 cm Battery type: Lithium-ion Battery life: 7-14 days Compatibility and accessories Compatible with all dog sizes Installation Easy to set up and use with a single button control for both collars Usage Ideal for training in parks or yards Waterproof receiver allows for use during swimming or bathing Other information Rechargeable remote control and receiver can be charged simultaneously Automatic power-saving modes extend battery life when not in use