Is the Bebang bark collar worth it?

Only if you want a cheap multi-mode collar and can return it. Its 2.6 out of 5 rating is below average, so a better-reviewed brand may be safer for daily use.

Does it shock automatically when the dog barks?

The listing describes a remote e-collar with beep, vibrate and shock modes, not a bark-sensing automatic trigger. You correct the dog with the handheld remote.

What dog sizes does it fit?

It is rated for dogs from 8 to 120 lb, with a 6-inch minimum neck girth. Measure your dog's neck before ordering, since the strap uses a hook-and-loop fastener.

How long does the battery last and how do you charge it?

The battery is rated for up to 20 days of use and charges in about 2 hours. Actual life depends on how often you use shock and vibration.

What comes in the box?

Expect the collar receiver, nylon strap, handheld remote and charging cable. Confirm the exact contents with the store before buying, since bundles vary.

E-collars like this usually drop during pet-supply sales and holiday events. Set a price alert and compare across stores rather than buying at the first listed price.