General description This fully waterproof electronic collar is popular among dog trainers and pet owners. Its training system helps control and train your dog using vibration alarms, sound warnings, and static penalties. With a remote design, you can easily stop, run, and recall your dog from a distance, making it an excellent training assistant. Technical specifications Remote control distance: 800 meters (no interference) Adjustable collar size: maximum length 67 cm Frequency: 433 MHz Transmitter battery: 3.7V 300mA lithium-ion (built-in) Receiver battery: 3.7V 300mA lithium-ion (built-in) Receiver waterproof rating: IP 67 Transmitter charging time: 4 hours Receiver charging time: 4 hours Transmitter standby time: approximately one week Receiver standby time: approximately one week Usage 3 training modes: shock, vibration, sound Adjustable vibration and shock levels: from 1 to 99 Blue backlight screen for night use Automatic power saving with sleep mode and memory function