Package includes1 x doorbell1 x User ManualFeatures:-Wireless connection, very low power consumption, active wake-up through remote access, fast startup-Visitors can make video and audio calls, and make short-term video recordings. The owner can know the information without opening the door.-Motion detection record, doorbell button trigger record, manual record.-The doorbell button wakes up, the human body PIR body recognition wakes up.-Dual filters automatically switch, high-power infrared light, night vision 10 meters.-More than eight months of standby time.specification:Power supply: 18650 battery (not included)Power supply voltage: 8-25 (V)Ringtone: According toPower consumption: 170 mAh (W)Wake-up mode: doorbell button wake-up, PIR human body detection wake-up, mobile phone wake-up upwardAlarm press: press quickly within 3-5 secondsOnline users: multi-user online viewingSensor performance: automatic white balance, automatic gain control, automatic backlightSignal to noise ratio: 39DBLens/Viewing Angle: 1.7MM@F2. 4/166Night vision: two filters automatically switch, high-power infrared light, night vision 10 metersResolution: 720PIntercom: Two-way intercom, echo cancellationWireless network: 802.11B/G/NWireless network security: WPS security encryptionWireless connection: One-key WIFI configurationVideo mode: motion detection video, doorbell trigger video, manual videoStorage: TF card storage, maximum support 32GPower supply: battery powered, two 18650 batteriesPower consumption: standby current 400uA working current 200MA workEnvironment: Working temperature: -10C 50C, workingHumidity: