Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: what are the standard lofts of clubs built into e12?
Document: I had high hopes that this gadget would help me to gap my clubs. I took it to the range on two occasions under perfect conditions and both times were a huge disappointment. The yardage the ES12 reports is consistently under the actual yardage. I have a Bushnell Rangefinder that is extremely accurate with which I could check the yardage. Since this gizmo measures ball speed - period - it depends on standard lofts of the club you input into it to come up with a distance.
When I first got the ES12 I took it right out to the driving net I built in my garage.First thing I learned was I was about 10-15 yrds short on my carry distances from what I think I hit my clubs. After letting go of my pride and accepting the distances I was getting I started hitting a lot more greens ;-pSecond thing the ES12 did for me was allow me to work on my swing and try out a few things to increase clubhead speed.
Further, this calculation does not take in account of forward press, or ballooning backspin, so again, distances will be off.With that in mind, I recommend this product for the high handicappers, like 18+, who hit standard shots and just want to dial in their iron game. I suppose low handicappers don't need something like this, because they already know their game.
The ES12 monitor is good at helping you learn your clubs distances.The blue tooth feature syncing to a mobil device is useful.
I would recommend this launch monitor to any one interested in dialing in the distance they hit their clubs. Easy to use. Software on Iphone works great.
The engineer from ES said a few degrees of loft have minimal affect and ball speed is the main factor.TL/DR: Easy to use. Great initial results for all clubs and distances. Very happy with purchase.
I would expect there to be more and more competition and significant  upgrades to this product:  all you reall get is a reasonable idea of distances for ou clubs. One comment on price: the retail price is not as listed--the company's own website has it at $249. [...] shp around you can get for 229.
You just place the unit 12-14 inches over and 12-14 inches ahead of where you are hitting. There are only two buttons; Power and Club Selection. You just select the club on the device before you start hitting. All clubs are preloaded w/o the ability to edit. You can also use Bluetooth to link it to the free app that will record all of your hits. After each hit the unit displays ball speed and then distance.
The ES12 Launch Monitor performed exactly as advertised. I have been able to dial in all of my clubs distances and it has transformed my game. I no longer have to guess at what yardage each club will go. The ES12 is probably the cheapest launch monitor currently on the market that I know of and it performs very well. If you want to know exactly how far you need to carry a ball with a certain club I'd recommend this launch monitor.
This devise measures your ball speed and also gives you an estimated distance both of which are recorded in an IPhone app. For me the distances approximate the distances I hit the ball with different clubs when I hit the best shots. I do find that the very first shot is measured at speeds and distances that I can't achieve, otherwise, the estimates match my speeds and distances. Using the app, your es 12 and IPhone are blue tooth connected.
Answer: yes