Tips：only support 2.4G WIFI ---------Package list Only Doorbell (No Chime & Batteries): 1 x WIFI Doorbell 1 x Manual 1 x Sticker 1 x pack Mounting Accessories ---------Package list Doorbell & Batteries (No Chime): 1 x WIFI Doorbell 2 x 18650 Batteries 1 x Manual 1 x Sticker 1 x pack Mounting Accessories ---------Package list Doorbell & Chime (No Batteries): 1 x WIFI Doorbell 1 x Chime(US/EU//UK Plug,optional) 1 x Manual 1 x Sticker 1 x pack Mounting Accessories ---------Package list Doorbell & Batteries & Chime: 1 x WIFI Doorbell 1 x Chime(US/EU//UK Plug,optional) 2 x 18650 Batteries 1 x Manual 1 x Sticker 1 x pack Mounting Accessories Lens: Wide Angle 1.7mm Lens Resolution: 720p HD Perspective: Horizontal 166 degrees Video Stream: Transmission 1280*720/30fps 640*360/30fps Pixel: 1.0MP CMOS Performance: Supports automatic white balance, automatic gain control, automatic backlight compensation System: Lite OS Standby time: about 6 months (10 wake-ups per day, 30 seconds each time) Day and night conversion: dual filters automatically switch Infrared distance: 850nm infrared, effective distance 5m Network Configuration: One-click WIFI Configuration + Sonic Configuration PIR Human Detection: Supports PIR Detection and Wakeup Audio Coding Standards: AAC and G.726 Audio In/Out: -38dB Microphone / Built-in 1 Speaker Video management: video recording, manual recording, alarm recording WiFi: 2.4GHz Network Protocols: TCP/IP, HTTP, TCP, UDP, SMTP, DHCP, DNS, P2P Wireless: WIFI802.11b/g/n wireless network Two-way talkback: support full-duplex real-time call Panoramic display mode: Simulate 3D and auto cruise Passive human infrared detection: support Adaptive code rate: support Voice Phone Call: support Remote wake-up: support PIR wakeup: support Mobile client: ANY BELL, for ios10.0, for android5.0 or later Power supply: AC/DC24V or two 18650 batteries (optional) Operating Humidity: ≤80%RH Features: voice call, video intercom; mobile remote wake; 100,000 high-definition 166-degree viewing angle; 1280*720 high-definition resolution; infrared night vision, long standby; built-in WiFi module; motion detection + speed information push Storage: Support 8G/16G/32G(not included) Product size: 14.4x7.5x3.3cm (doorbell) Color:Silver,Black(Optional) * Support for AP mode and mobile phone in close connections, No data traffic is required to view the video. * Support PIR motion detection, when someone hovers at the door, it immediately alerts push notifications to the mobile phone. * Day and night modes automatically switching. Whether day or night, the image is clearly visible for both day and night. * 1.0 Million HD pixels collocated with a wide-angle lens. 2.4G WiFi connection. * High-quality two-way talk with noise cancellation.An ideal item for keeping your family safe and secure. Chime -- Description: Specification: US plug, Eu plug, UK plug (optional) Ringtones: Music (52 types) Power supply mode: socket direct charge Volume: up to 100dB Power supply voltage: 110-220V Power consumption: 10mW Working frequency: 433Mhz Sensitivity: -110dB Type: visual doorbell machine Scope of application: furniture smart doorbell Color: Black Product size: 80 x 80 mm * This is a good partner for a visual doorbell. Fine-quality material makes it more practical. * Easy to pair with the doorbell, easy for installation. * Low power consumption. Compatible with smart video doorbells. * Wifi connection, more convenient. * Practical with its waterproof material.