The speaker output is described as clear for talk-back, and the built-in siren is noted as loud. Some reviewers also mention audible movement sounds from the camera when PTZ engages, which can be noticeable up close.
The built-in siren is consistently described as loud (often cited at 100 dB), while voice playback through the speaker can be slightly quiet in some setups.
The onboard siren is repeatedly described as loud and attention-grabbing, and the speaker is adequate for two-way talk. Some reviews emphasize the alarm and flashing lights as a deterrent.
Speaker output is generally described as loud enough to get attention, with siren/alert modes also noted as strong. Some reviewers still find the tonal quality a bit thin.
The built-in siren and speaker are often considered loud enough to be effective, though at least one review says the siren volume is not especially impressive.
The built-in siren is widely seen as an effective deterrent and loud enough to scare animals or draw attention, though at least one review notes it is not as loud as a dedicated home alarm.
Speaker output ranges from adequate to loud, with siren/alarm features acting as a deterrent. Some reviewers found the speaker slightly weak or the siren not the loudest in the category.
The built-in speaker and siren are useful for deterrence and conversation, but several reviewers wished the siren or speaker output carried farther indoors.
Speaker loudness is a common complaint: multiple reviewers describe the speaker as quiet, making two-way talk less effective at distance and the siren more attention-getting than truly intimidating.