【2MP 1080P Bullet Camera with Microphone】--With built-in microphone in the camera It can support a one-way audio, you can hear the other party talking, but not the conversation.And you need to make sure your DVR support Audio input.

【Compatibility】 --This is HD-TVI Security Camera,It only Compatible with HD-TVI Analog DVR Systems,if you want Audio Recording,please make sure you DVRs support Audio input.But It work well with ZOSI DVR (Model:ZR08VN00,ZR08VN10, ZR08VN20)

【120ft Night Vision】--Built in 36pcs IR LEDs, Get a sharp and crisp image day or night with the camera's automatic IR-CUT filter. Up to 120ft night vision in total darkness and 160ft Night vision in ambient light. More than 3.0Lux the night vision is color.

【IP66 Weatherproof,Indoor and Outdoor use】--Aluminum metal vandal proof & waterproof can withstand the toughest of outdoor conditions,adjustable 3-axis camera stand, cable through bracket for hassle free use in rainy or snowy days.

【NOTED】--This wired cameras system come with power supply &video power cable,but it did not come with DVR,it need to connect to the DVR to work.