Well, actually it's near infrared so at this "high" power (3mw) you will definitely see it. You can actually see past 800nm if the source is bright, but I don't recommend it.

The wavelength range where optical radiation is visible does not have sharp borders. Here, the wavelength band of 380 nm to 780 nm is used.

https://www.icnirp.org/en/frequencies/visible/index.html