Three AAA batteries are required, (not included) which are installed inside the handle of the umbrella. High-Quality LED Light-Up Blade-Runner Style Transparent Umbrella with Flashlight and 7 Colors.
Great idea, not sure how the pen would detect the 2 laser beams have crossed each other or the dots are in the same place on the wall, but would love this for the pens I have. Recommend these btw
This clear, color-changing lightsaber umbrella is so cool.
https://www.ebay.com/itm/201461669119
You can buy one at Amazon!
Great idea, not sure how the pen would detect the 2 laser beams have crossed each other or the dots are in the same place on the wall, but would love this for the pens I have. Recommend these btw