Driver NAP Alarm + 2 in 1 include Long Lasting Battery

I got this to help with workplace drowsiness - unfortunately, it is sized for a child and has no capacity for adjustment. I spent 30 minutes trying to squeeze my ear into the tiny loop - the only result was a badly bruised ear. If you are petite, it might be OK, but not for an normal-sized adult male.As a second point, the instructions mention that it comes with battery installed, so it is ready to be used as soon as you switch it on. Actually, it arrived already ON, and there was no instruction on how to switch it OFF! I finally discovered that the beep vs. vibrate switch had a middle position that was OFF - but I wonder how much of the battery's life was consumed as it vibrated its way across the country. In fact, I'm surprised that a shipper would accept it - it was kind of spooky when I took the envelope out of my mail box and felt it vibrating in my hand!

The vibration and alarm features work quite well. However, the clip going over the ear needs to be adjustable as does the point at which the alarm or vibration comes on. The alarm would come on too quickly when I moved my head. I had to hold my head up higher than I'm used to in order to keep it from coming on and my neck tired too quickly. Needs an adjustment point.

ok

I have trouble with daytime driving. this earpiece works to keep you awake. Although annoying at times, better safe than sorry.

There is absolutely no way of adjustment and this thing feels like it was built for a 2 year old. And when you tried to pull the plastic ear support just a bit, it broke. $20 wasted. Regretting buying this thing.

NO SO GOOD

There were no batteries and no way to replace the batteries either.