Waterproof and dustproof, the outdoor camera equip with a weatherproof cover,can be used outside even in very bad weather. Support IR Night Vision, the outdoor camera build-in 4white LED light. With this function, you can see outside no matter day or night, keep your home more safer. Unlock with Indoor Monitor (Screen), this video intercom system can work with the electric lock. You can open the door with the indoor monitor. Don't need to go to open the door for youvisitor, very convenient! Multiple ringtones - free switch, the 25chord ringtonescan be switched freely, elegantly and fair-sounding. Both of the ringtones and volume can be adjustable,can meet the original needs of your time. Don't need to worry about can't hearvoice or hear ittoo loud any more. Support Handsfree Dual-way Intercom and Indoor Monitoring, when a visitor ring the bell, the monitor will be activated and show the image outside.Press the answer button, then you can talk tooutside, press the answer button again to turn it off. If you do not press the button after conversation is finished or if no one answer the call, the monitor will turn off automatically after 60s., Manufacturer: QAXRZCUCD