Feature : -HD Image picture Camera ,not only doorbell but also a camera -Support Phone remoted control ,where ever u are here -High quality two-way talking audio -Support PIR motion detection: when someone hovers at the door, it immediay alerts push notifications to the mobile phone. -Day and night modes automatically switching: Whether day or night, Image is clearly visible for both day and night. -This ring video doorbell has IP68 strong waterproof function, no longer have to worry about the rain will damage the doorbell. -Support 2.4G WiFi connection, Android IOS APP remote control. (Ubell app ) -An ideal item for keeping your family security. -WiFi Doorbell Specifications: -: Wide Angle 1.7mm -Angle of view: Level 170 degrees -Video stream transmission: 1280*720/30fps 640*360/30fps -Standby time: about 8 months (10 wake-ups per day, 30s each time) -Day and night :Support -Infrared distance: 5-10M -Network Configuration: Support with wifi -PIR human detection: support PIR detection and wake up -Network: WiFi 2.4GHz -Wireless: WIFI802.11b/g/n -Alarm: PIR -Two-way intercom: support full-duplex real-time intercom -Sleep time: 15s, 30s, 60s adjustable -Voice phone call: support -Remote wakeup: support -PIR wakeup: support -Mobile phone client: ANYBELL, for iOS 10.0 or Android 5.0 or later -Power: AC/DC 24V or 3 x 18650 batteries 3400mAh Ding Dong Bell Specifications: -Material: ABS -Color: Black, -Plug: UK-Plug(optional) -Working Voltage: AC 90V-250V -Working Frequency: 433.92MHz ± 280KHz -Power Consumption: 10mW -Sensitivity: -110dbm -Transmit: 0.1dbm -Volume: up to 110db Q : How to connect the chaim to doorbell camera ? A: ,until LEDs light turn blue light . ,chaim will be singing .After it stop singing ,choose the music u want (4) ,then press the voice bottom,until the doorbell music . Q: It is including with battery ? A : Optional with battery Packing details : Doorbell only = 1pcs doorbell camera Doorbell +Chime =1pc doorbell camera + 1pc Chime chime only =1pc chime Doorbell+Chime+Batte = 1pc doorbell +1pc chime+3pc battery ★The Chime have black and white color, please contact customer service to choose the color. Or leave a message in the order. Thank you. The doorbell camera will not work on a 5Ghz wireless standard at this time. If you have a dual-band router, be sure to segregate your wireless channels and connect the Camera to the 2.4ghz channel.