Electric Dog Training Collar Waterproof Rechargeable Dog Collar With Remote Control Specifications: - Input: 100 - 240V, 50 / 60Hz - Output: 5V, 0.5A - Transmitter battery voltage: 3.7V - Receiver waterproof level: IP67 - Battery type: lithium-ion battery (built-in) - Transmitter charging time: 4 hours - Transmitter standby time: about a week - Receiver charging time: 4 hours - Receiver standby time: about a week Applicable Dog Breed: Large Dog,Medium-sized Dog,Small Dog Weight: 0.34kg Package weight: 0.39 kg Package Contents: 1 x Transmitter, 1 x Receiver Collar, 1 x Test Light, 1 x Adjustable Collar Strap, 1 x Hang Rope, 1 x Charger Cable, 1 x Plug, 2 x Shock Electrode, 1 x English User Manual Features: Fully waterproof design: the receiver has a super waterproof performance, so your pet can swim or walk in the rain with it Adjustable levels: levels of vibration and shock are adjustable from 1 to 99, and you are advised to try levels gradually to find the proper one when using this pet training system for the first time 3 training modes: shock / vibration / sound With blue backlight screen: can be used at night Long-distance remote control: the remote distance is 800m (without any disturbance) 3 channels: there are 3 signal channels on the remote transmitter, and it can control 3 receivers of the same model Auto power save: automatic standby mode and memory functions Adjustable collar size: the max adjustable length is up to 67cm, suitable for all size dogs