A quick look found $68.99 Amazon.au via UK ~$79- elsewhere.
From TP-Link website
Ultra-High-Definition Video: Records every image in crystal-clear 3MP definition
Pan and Tilt: 360º horizontal range
Advanced Night Vision: Provides a visual distance of up to 9 metres.
Motion Detection and Notifications: Notifies you when the camera detects movement
Sound and Light Alarm: Trigger light and sound effects to frighten away unwanted visitors.
Two-Way Audio: Enables communication through a built-in microphone and speaker
Safe Storage: Locally stores up to 256 GB on a microSD card, equal to 512 hours (21 days) of footage. (Based on laboratory conditions)
Voice Control: Free Up Your Hands with Voice Control: Works with the Google Assistant and Amazon Alexa.