Logitech Wireless Presenter R400

I'm going to list my issues with this device and then what I like about it. The receiver is huge. It's longer than most of my flash drives. It sticks out 1.8 inches/45.5mm when plugged in. This is extremely annoying as the image on the box is a stubby USB receiver Furthermore, inserting the receiver into the remote DOES NOT turn off the remote. I had to choose an alternate USB port as the one I wanted to use was in a bad position for such a long receiver. I also can't leave it plugged in when I'm on the move like a stubby receiver. Other customer images show what I'm talking about. As other images show, they replaced the nice case with a useless bag. It takes batteries. Seriously? It should have been rechargeable through USB, with a USB-C connector. The laser is good on everything except the TVs I use. It works great on my glass whiteboards, but my TVs do not show it well enough for me to see it well, let a lone the class. I tried multiple color backgrounds in PowerPoint to no avail. Not really the laser's fault. It works great on regular PC monitors, but it does reduce its usefulness, and that is why I chose a device with a green laser. The timer is ok, but I use a clock at the back of the classroom. So, I don't use it. It has vibration alerts, but you can't tell it when you wan them to go off. So, that's not useful. They seem to evenly space themselves out based on the time you set. Start/stop slide show works as expected just as forward, reverse, and blank screen. The remote is comfortable in the hand. It is one of the more comfortable remotes I've used. It's made in Malaysia, not the other place. It is a good presenter, but it could be better.