Built-in Microphone and Speaker Two-Way Audio with Noise Cancellation Siren Volume: 99 dB (Level measured at 10-cm distance)

TP-LINK (TAPO C501GW) Outdoor Pan/Tilt 4G LTE 1080P Security Camera, Dual Mode 4G/PoE, 360°, Smart AI Detection, Sound & Light Alarm, 2-Way Audio