Manufacturers Specification   Output :5V, 0.5A   Colour :885-1 drag one   Remote control: remote control distance 800m (no interference)   Specifications: American standard, European standard, Australian standard, British standard   Charging time of transmitter :4 hours   Receiver waterproof Grade: IP67   Standby time of transmitter: about one week   Adjustable collar size: maximum adjustable length up to 67cm, suitable for all sizes of dogs   Product category: collar   Receiver standby time: about one week   Material: ABS   3 training modes: impact/vibration/sound   Transmitter battery voltage: 3.7V   Receiver charging time :4 hours   Battery type: lithium-ion battery (built-in)   Input: 100-240V, 50/60hz   Package Contents: 1* transmitter, 1* Receiver collar, 1* test lamp, 1* Adjustable belt, 1* rope, 1* Charger cable, 1* plug, 2* Electric shock electrode, 1* English user manual