Hikvision DS 2CE16K0T LPXTS 3K Two Way Audio Siren Mini Bullet CCTV Camera – Delivers high resolution surveillance with two way audio, active siren alerts, and dependable security monitoring AVMATRIX Broadcast Converters Tower Form Factor Design – Tower Form Factor Design – Expandable tower chassis allows easy upgrades and customization Up to 15 hours of playtime: The built in rechargeable Li ion battery supports up to 15 hours of playtime and effortlessly charges your device via an USB port Mini Bullet Design – Compact and discreet form factor suitable for indoor and outdoor use Smart Security Monitoring – Provides reliable 24 7 surveillance for homes and businesses