This article contains the Quick Start Guide for the NV681 Series Shark® Rotator® Powered Lift-Away Speed™. This supports the NV681 and NV681BRN.
On the bottom of your box, you should see the model number near the bar code.
The main body of the vacuum (back of the unit) should have a rating label that features your model number.
Your product's model number is listed on the front cover of your instruction booklet.