BobWet That is correct. The button is mechanical and is attached to a slider which pushes the glue stick forward. Also, be aware that this glue gun only uses the mini-sized, cool temperature glue sticks. It works well and actually does heat up in about 15 seconds, as advertised. It is not a "workhorse" for your shop, but it does a fine job when you have to fix something in the field. I gave it 5 stars.

BobWet This is a low temperature glue gun. It uses mini-glue gun sticks, NOT full sized sticks. Heat up time is approximately 15 seconds as advertised.

BobWet If you point the screen directly at the sun, then the numbers will be washed out, but still readable. If you shield the sun with your hand, or if you rotate the meter away from having sunlight blast right onto the screen, then it will be easily readable.

BobWet NO! It does not measure a single 1S battery. With only a 1S battery, the screen will remain blank. This is a great cell meter, but I had to also purchase a separate meter so I could check my 1S cells.

BobWet No, it does not have altitude hold. It is well made, flies quite fast and very smoothly, but it is a very basic FPV drone. The head and tail light are very bright and easy to see. Note that the camera has a limited number of frequencies and does not do all 40 channels. Video is transmitted only in the PAL format, it cannot transmit in NTSC format.

BobWet If you look at the top of the board, at one end you will see a label saying "WiFi". Next to that label (to the left of the W in WiFi) you will see a small gold circle. That circle is for an external antenna that uses an IPEX connector. When you buy an external antenna, you must either get one with an IPEX connector, or you must also purchase an adapter to connect to the board's IPEX connector. To attach the antenna's connector, simply push it onto the board's connector. To remove it, just pull it off.

BobWet Yes it comes with a camera. I did not find a way to switch to NTSC, so I am using mine with PAL. The camera can be mechanically tilted up and down. Video frequency is set by little DIP switches under the cover. It transmits video on a limited number of channels..

BobWet The entire lens arm can, of course, be unscrewed, but the lens itself cannot be separated from the lighting section. Also, although the alligator arms are easy to adjust, the lens on the arm can be a bit of a pain because it is hard to adjust its position. That being said, I think that this item is terrific and I recommend it to anyone who has to work on small objects.