X9 Smart Doorbell Supports Video Call Variable Sound Rechargeable Security Video Doorbell for Home Support video calls to easily deal with visitors At the same time,capture the screen and save it to the cloud for security protection Upgrade the voice-changing function,you can use the voice-changing intercom function when you are alone at home Support original sound/adult male 2 sound modes are optional Portable installation can be pasted,can be punched Specifications: Material: ABS Battery capacity: 800mAh Power input: 5V=2A Use time: normal use more than 6 months Charging time: 1.5 hours Standby time: more than 2 years Intercom type: color visual Doorbell Machine Dimensions: 80x 53 x 22mm Dingdong machine size: 55 x 42 x 25mm (including USB: 12mm height) Package included: 1 x Doorbell 1 x Indoor Ding-Dong Machine 1 x Charging Cable 1 x Auxiliary Mounting Sticker 1 x Small Screw 1 x English and Chinese Manual