The JAWSAW can cut branches up to 4 inches in diameter; the bar moves to accommodate branches up to 4" thick.
The JAWSAW is battery powered and uses a 20-volt battery. Some product details list a 20V 2.0Ah battery and a 0.4A charger included, while other listings are sold as tool-only.
The tool includes an auto-tension feature to keep the chain at the proper tension and an automatic chain oiler with an oil-level indicator for lubrication.
The JAWSAW's protective housing and retractable blade let the housing act as a prop, so you can cut fallen branches directly on grass or pavement without first propping them up.
A 5-foot pole attachment (sold separately) is mentioned as compatible for trimming limbs without using a ladder.
Far less of the chain is exposed compared with traditional chainsaws: the bar and chain retract into the neck when not in use, and the protective housing keeps much of the chain enclosed during cutting.