Product is so worth it!! Best thing is the variable voltage and able to toggle by .1!! Mod is polite too every time i turn it off it tells me "take care" lol!
Battery life is awesome so far we received them at 3/4 battery life i believe 4 days ago and my battery hasn't budged (but i only use it maybe 4 times a day). Now my husband who hits it all day long says battery lasts him a good 24 hrs. Once it gets below half way it drops faster. All in all great for the price!!