•Using touch sensor button,which is generous and nice-looking,also can save electricity •Rainproof cover design,waterproof and moistureproof,which can protect the service life of the machine •Unlocking function (the unlocking interface is suitable for DC 12V normally open/normally locked lock) •The doorbell is equipped with a exit button interface,it is practical. •An outdoor machine can support up to 5 mobile phone users •The doorbell can talk with cell phone,which has clear and loud sound quality •Recording function,you can use mobile phone to check it at any time •Adds a variety of ways to unlock,such as card,password and face recognition unlock •P2P servers push visitor's calls,take photos of visitors and detect alarm records Specification: •Switching Power Supply: AC 110-240V •Machine Current: Less Than 800mA •Call Delay Time: 120s±10% •Camera Sensor: AHD 720P •Lens: 3.6mm,92 Degrees •Function: Unlock,intercom with cell phone,face recognition,infrared night vision,take photo,video recording,etc. Equipment Requirements: •1. Smartphone or tablet for Android 4.1 or above and for IOS operating system •2. Household network above 4M •3. Mobile network 3G,4G Note: Does not include memory card,no battery,not rechargeable,needs to be connected to power source. Package included: •1 x Indoor Monitor •1 x Outdoor Camera •2 x Power Adapter •1 x 4-core Terminal Wire (5m) •1 x Unlock Terminal Wire •1 x Mounting Plate •1 x Screw •5 x ID Card •1 x Remote Control •1 x English User Manual