Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: How long does it last if turned on to record video?
Document: You tap the pen to take snapshots, or hold the button for 2 seconds to record video. For convenience, you can turn the pen on and leave it in standby mode, so when a situtation comes up, you just press the button to begin recording. I haven't tested how long the pen can remain in standby mode. It's one thing I have to test. It's not mentioned in the user manual.- My pen seems to have been tested before shipping.
Works as described. Clean and clear video. Easy to use. The build overall is solid. Once turned on the device goes back to sleep pretty fast, but overall it's pretty good.
I bought this by accident but decided to keep it when it came.I did some recording around my home just to test it out. The microphone is very sensitive. I was in my kitchen and just turned it on to see what would happen. I was mainly interested in the video. However, when I played it back, it picked up the sounds of birds chirping outside on my patio.
I've bought a few of these over the last couple of years and they are hit or miss as to whether or not they work. I've had my share that failed right out of the box. I was pleased to see that there were no issues with the camera that I bought from this merchant. Another plus is that they email you good, English instructions that are easy to understand. Believe me - the instructions that ship with these pens are atrocious!
It would have more uses if it could last more than 88 minutes. But it works great as a spur-of-the-moment recorder.- I wish the whole pen were black. The chrome accents make it look like a pen of course, but if it were completely black, it would be easier to conceal. Leaving it in my shirt pocket, people will glance at the chrome clip and button on the top.
This is really gud device, amazed to see the tech build in,  yet the operator manual is a rocket thing to understand..besides u I've to remember the order of blinking lights for video and pics typically...the pen work fine2.
When I plugged it in and reviewed the video, the audio was, at best, horrible. The video, however was good, although the playback was really jumpy, and sometimes distorted. If you are just wanting to goof around with something, it fits the bill. If you have a specific reason you want to use it for, I wouldn't recommend it.
This is an amazing spy pen camera, I did not know HD quality can be installed and used in such a camera, it took amazing and clear video and I caught a bunch of things with it. The video is clear for such a small lens. I highly recommend picking one up for yourself. Delivery was on time too. A+ business.
This is my second spy pen. The first had horrible instructions in broken English and didn't work very often. The Spycrushers spy cam has awesome video, clear and easy to understand instructions and works great. If they come out with another gadget I want I'd definitely buy from Spycrushers again. Btw, I should add that the customer service has been fantastic! !
Very satisfied with this product, extremely impressed with the customer service from Crushers Inc. Even before I received the product I was sent a PDF via email with clear legible instructions all in English, not like other companies. Then pen looks and feels like any ordinary pen, has great video quality. I will definitely be purchasing other products from this company again.
Answer: I have run my pen down twice, and it has recorded 88 minutes of video both times, and it automatically broke the recording into about 4 clips, for a total size of 3.92GB each time :)