Features: Intelligent detection: intelligent motion sensor detection and humanoid detection algorithms, effectively reduce false positives. Ultra-low power consumption: intelligent power saving, long standby time, 7800mAh original 18650 battery (not included), normal use for 6 months. Simple network distribution: device configuration in just 2 steps. Quick response: within 3 seconds from waking up to seeing an image, and within 1 second for message push. Long-distance transmission: smooth image at an open distance of 100 meters, smooth image at a distance of 30 meters through a wall. Super Push: The first company in the industry to still receive news pushes when the APP exits the background, solving the current industry pain points in the market. Others: Support continuous recording, indicator switch, SOS function, device sharing, intelligent video screening, APP remote update device firmware. Specification: Name: D5 Low Power Smart Camera Doorbell. Main chip: T21Z. WIFI: MT7682, WIFI 2.4GHz, IEEE802.11b/g/n. PIR: capture distance 5 meters. Storage: Maximum support 128G. Infrared light: 850nm high-power infrared light, the maximum irradiation distance is 10 meters. Status indicator: blue, red. Charging indicator: blue, red. Button: reset button. Distribution network: Sonic distribution network. Recording: Support TF card recording (optional event recording, continuous recording), mobile phone local recording, cloud recording (free trial for 1 month). Push: extremely fast push within 1 second. Motion sensor detection: PIR motion sensor detection, high/medium/low sensitivity adjustable. Image Sensor: Sensor: F23. Resolution: 1920*1080. Size: 1/2.9'. Lens: Focal length: 3.6MM. Aperture: F2.4. Viewing Angle: Diagonal 135°. Audio: Speaker: 8Ω/1W. MIC: Support,sound capture distance > 3 meters. Intercom: Two-way voice intercom. Echo cancellation: Built-in echo cancellation. Howling: Howling Howling suppression. Wake up: Wake-up method: Remote wake-up by mobile phone, wake-up by PIR. Wake-up duration: <500ms. Power supply: Battery powered: 7800mAh rechargeable lithium battery (Not included). External power supply: Micro USB interface power supply (DC 5.0V). Working current: 260mA/5V. Sleep current: 100uA/5V. Standby time: 6 months. USB charging: 6 hours full. Operating Temperature: -10 ℃~ +60 ℃. Storage Temperature: -20℃ ~ +70 ℃. Waterproof level: IP65. Mobile APP(optional): Tuya version: Tuya / Standard version: Onecam