Photo resolution: 480×272
Photo format: JPEG
Image sensor: 2 MP 1/4 inch OV CMOS
Display: N/A
Lens: 90°, F2.8 (aperture)
Transmission mode: 2.4G RF
Transmission distance: 115 feet
Key-press: 1 key-press（only for photograph）
Microphone: N/A
Speaker: Ding dong Sound
Fixed and mounting method: 3M glue or Screw（5pcs screws）
Battery installation & uninstallation: Fastener(No screw, easy to install & uninstall）
Power Supply Mode: 4pcs AAA batteries (not included)

Transmission mode: RF+WIFI
Transmission Date: WIFI 2.4G
Receive Date: RF 2.4G
Transmission distance: RF 115 feet +WIFI 115 feet
Energy efficiency Class: Class 6
Indicator light: 1 PCS
Surface treatment: Source material
Reaction time: 2s-3s（According by network environment）

Product Features

• Instant Alerts – Get instant HD photo alerts to the smart phone when visitors press your doorbell or trigger the built-in motion sensors, watch over your home in HD picture
• Free Cloud Server – Visitor records will be storage in free cloud server, no need to buy extra SD card. Photos of each visitor are recorded on the server for easy viewing later.
• Easy to Install – 3M adhesive stick or screw fix installation, no wiring required. Can install it anywhere you want.
• Package Contents -1 plug-in receiver Chime, 1 remote Wi-Fi doorbell transmitter, 1 set screws and fixed frame(include double side sticker)
• 100% Satisfaction and Money Back Guarantee – if you have any questions or qualms about this product, don’t hesitate to let us know. Either we’ll give you a FULL refund, or we’ll work with you till you’re satisfied.