This device is recommended by a rancher, and receiving a nice compliment. ***Easy Replaceable Design. The battery pack is easily removed when it is expired. Also the shaft is replaceable. One full charge, be able to last two weeks at least even for frequent hogs or cattle truck loading. No need to load alkaline batteries always, Charging time about 4 hours. ***Large Trigger button and AntiSlip Handle with Rubber wrap. The Trigger Button is Large enough. Easy for pressing, always under finger if needed to press, works anytime. AntiSlip Handle with rubber wrap. Easy to hold, safe, and efficient. ***Completely waterproof design. You can use this VETPLUS prod in the drizzle or moisture no need to worry about water penetrating into the handle, no accident shock to your hand even if holding the handle in wet . But, Dont IMMERSE IT IN WATER FOR WASHING. ***Powerful electric shock, it is available for all big animal controlling, such as cattle and hogs, all the animals will get great response to it. But dont worry about hurting your livestock, due to the weak current. It is a safe way to train dogs. ***With Glare Torch Light. Led illumination inside, convenient operating the VET.PLUS PROD in dark.