Are you still looking for a multifunctional and practical doorbell for home? If so, please consider to choose this product. Smart doorbell You can widely use it on many occasions.battery doorbell This smart video door bell has many advantages, such as wide viewing angle, highly clear lens, two-way audio, nigh vision, etc. Features: 2-Way Audio & HD Live ImageKnow who's before you open the front door. Wireless doorbell camera built-in 2-way noise-free microphone and speaker with high-definition camera, enhance 2.4Ghz Wi-Fi. You can also give the impression that you're at home even when you're not, speaking to your visitor as if you're there in person. PIR Human Detection & Instant AlertsThis wireless doorbell camera with enhance motion detector sensor and sensor sensitivity is adjustable. when someone passes or rings the doorbell does the doorbell immediately respond and recording a short video, send alerts to your smartphone. IR Night Vision & 155 Angle ViewWill take advantage of every detail again, Even in the dark. The primary lens is 155 Wider viewing angle, ensuring you get crystal-live images, whether day or night, to see who's walking by your door. Shared Usage & Simple to InstallOur outdoor doorbell with camera allows shared up to 8 users to connect to doorbell and 3 users to view live images simultaneously. The doorbell main account has permission to delete other users. The door camera compatible with for iOS and Android. Simple to install and operate! Cloud Storage & MoreSmart door camera will save all recorded videos to the cloud (not support local storage). With encrypted cloud services for remote and playback video, you never miss a moment no matter where or when you are. The doorbell cam offers three month free Trial. Specifications: Material: ABS Battery Type: Rechargeable lithium battery Battery Capacity: 4000mah Charging Voltage: 5V/2A Support WiFi: 2.4Ghz (5Ghz is not suported) Video Doorbell Camera: 136 * 48 * 28mm / 5.35 * 1.89 * 1.10in Wireless Indoor Chime: 63 * 45 * 14mm / 2.48 * 1.77 * 0.55in Package Weight: 310g / 10.93oz Package Size: 17.2 * 5.6 * 5.2cm / 6.77 * 2.20 * 2.05in Package List: 1 * Wireless Video Doorbell Camera 2 * Wireless Indoor Chime 2 * Screws 2 * Nut 1 * USB Cable 1 * Adhesive Tape 1 * User Manual (English)