Before opening or installing any downloaded file, upload it to VirusTotal.com. This free service scans the file using dozens of antivirus engines to detect hidden malware or trojans.
For wireless, Bluetooth, or IP-connected micro cameras, the SQ Mini DV Camera App on Google Play allows real-time viewing and bidirectional audio control.
User experiences with the ZAQ812 and its associated apps are mixed, which is common for generic IoT devices. Here's a summary of feedback from verified buyers: