This comes with some assembly needed. The assembly was simple and did not need instructions, it was pretty self evident. I really like the adjustable length of the shaft, that is a huge feature. The handle also rotates so you can tilt the trimmer to edge and still have the handle on the horizontal plane. That, too, is a very good feature. It is no bump to extend the line and I was a bit concerned about that but it worked fine. You let up on the trigger and it magically seems to extend, not sure how it works but it does. The plus factor of the lithium battery should be self evident. I have not had enough trimming to run it down and it seems to charge rather quickly. Overall, this is an excellent tool.
From The Vendor:
2-in-1 shaft for trimming or edging; adjustable length with 180 degree rotation for easy edging
20V 2.0 Amp Hour Lithium-Ion battery
On-tool battery power fuel gauge
Innovative charging station; .080" twisted line
Includes: SCOTTS String Trimmer/Edger, 20V Lithium-ion
Battery (1) and Charger; .080" Twisted Line Spool
(1), Grass Deflector and Operator's Manuals
If reviewing a product, it may have been received free of charge. That will NEVER have a bearing on my recommendations.