Second one we’ve purchasedI purchased this to use in a high school classroom on a daily basis. I have used and subsequently lost or broke about a dozen wireless presentation remotes over the past 12 years. I have used this product now on a daily basis for about two weeks. I can't comment on battery life other than to say it uses standard sized AAA batteries and not a proprietary or hard-to-find battery. The dongle fits inside the back of the remote and holds there securely. I have never felt it would fall out. The remote itself is thicker towards the rounded end and tapers down towards the narrower end. It is comfortable to hold in the hand. There are two slider switches on either side of the remove. On the left side is the on-off switch. When on, the buttons on top of the remote to control its functions light red. They are bright enough to see but not distracting. On the right side of the remote is the slide switch that toggles between presenter and mouse function. Although hard to see in the picture, there is a center joystick that acts as a mouse. The mouse function does work but it moves the mouse cursor slowly so I wouldn't count on it for frequent use. The laser is red and shows up clearly in a brightly lit room. The classroom in which I teach has overpowering fluorescent lighting and the red dot is clear. When plugged in, the dongle sticks out about an inch. I have never had a connection drop. In general, I like the product and feel it is one of the better ones I've used over the years.The only flaw, you can't seem to speed up the curser. It is slow moving across the screen.This contains both a mouse and presentation abilities as well as a laser pointer. This is very helpful since I'm using Prezi and not PowerPoint.I needed it to teach my lecture course. I don't like standing in front of the room while asking the students to evaluate art. I also like being in the back of the room to be sure the laptop crowd is with me. This does the trick. I have to switch between the mouse and the presentation modes, but it's relatively easy. It's easy to maneuver the cursor using your thumb. It just takes a bit of practice. I also like the on/off feature which greatly extends the life of the batteries. It is just the right size for my hand and it's not too heavy or light. It even comes with a nice carrying case. The receiver slips into the mouse so I'm less likely to forget it when I'm packing up.Bought this to use with my Acer CB3-111 Chromebook (Released October 2014). Battery life is excellent (haven't had to change it since purchasing and it has been used for about 2.5 hours with some time using the laser). The Laser is bright enough to see from the back of a a well lit conference room. In terms of function, It works well with Google Slides. The forward and backward buttons work flawlessly and the joystick works well also. The top button that is supposed to blackout the screen does not work (at least with Google Slide, I have not tried it with Microsoft Powerpoint). Overall, the product is great for someone that needs a reliable pointer for presentations.it works surprisingly well. for the price i do not think it can be beat. the joy stick style cursor mover does take some getting used to and is not as fast as traditional air-mice but for 1/5 of the price it is a fair trade. the only real downside is that the USB dongle is rather large and may have an issue with damage since my USB ports are along the back of my laptop and requires removal when packing up your gear due to its size but that was a known factor as the size is clearly displayed in the pictures. with the appropriate expectations given it is an excellent value.I use this remote on a Macbook 13" 2011 with Mavericks and the latest version of Keynote and it works flawlessly both the presenter option and the mouse option as well. I gave a lecture in room where all wireless microphones had interferences from an unknown source and the presenter didn't show any problems.The design is very ergonomic and it doesn't feel uncomfortable even after 90 minutes speaking no-stop. I move my hands and fingers a lot while talking and with this remote i could use my fingers while holding the remote with just my thumb. Since is very lightweight you don't feel like you're making any effort to keep it on your hand.This product showed up exactly 2 days from when I ordered it, as stated without any problems. The remote is sleek, fits well in my hands, and came with a nice little case. I wanted a basic remote with a laser and a button to blacken the slideshow. This has a cursor control, which I haven't really used during presentations but it is a nice option. One thing they didn't specify, or maybe I missed, was the USB receiver has storage inside the remote! I thought that was a nice feature that some of the remotes I was looking at didn't have. I recommend this remote.Cursor control isn't really the best, but everything else is good enough.By Prakash V Marvaniya,Bhuj,GujaratIn comparison to Logitech R800 and price also this is best. If u want to purchase presenter with wireless connectivity and also having mouse operation both then this is the best item. But in my case Black screen button is not working. Rest of the operations are very fine. As I do not need more this facility I have not complained or return the item. But amazon should see that any item sent by vendors should work properly as per specification given on site. If u are lucky to get tested presenter then this is best having low price.Very easy to handle just handy one.You can go for it.Good enough for all kind of presentations. Laser light is interesting feature along with mouse and presentation modes.In the description it says it works on Mac OS but it doesn't work properly. The back and the blank function wasn't working properly so I thought of returning it. But I could not find any return option, only replacement or exchange is available. Even customer care was not very helpful. I would strongly recommended not to buy this product.Good qualityGood