why does not the arlo wireless bell record the entire event? mean as long as the event prolongs?

[kramsam]

unlike a ring bell- where the entire activity gets recorded, arlo bell cuts away even when the person/ animal is in the zone of the bell - essentially defeating the purpose of the bell.

[JamesC]

Triggered events can be recorded for a fixed duration or until activity stops up to 300 seconds.

If you are using a fixed duration, the recording will end regardless of what activity is happening in front of the doorbell. If you are using record activity until motion stops, the recording will continue up to 300 seconds as long as the doorbell is still detecting motion.