Parts List: 1x Host 1x Ding-Dong machine 1x Reset Needle 1x Data Cable 1x Adhesive Sticker 1x Instruction Manual Product Specification: Product name: Video Doorbell Are you still worry about the delivery in front of your door disappeared? Are you afraid of some strangers breaking into your house? Our video doorbell can accurately captures all moving objects and visitors in front of your door, giving you more time to take care of your home security while you are outside. Key Features: Voice Change: Our video doorbell supports voice change, girls can change their voice into an uncle to handle all kinds of situations with ease. With Ding-Dong Machine: Put Ding-Dong machine in bedroom or living room, and someone will ring the bell together, not afraid of missing. Easy To Install: This wireless doorbell camera does not require any complicated tools, which is easy to install with adhesive tape or screws we provide. Specification: Aperture size: F2.0 Supported system: Android/ iOS Video call: support Type of battery: rechargeable lithium battery Voice intercom: support Operating temperature: -20?c-90%RH Resolution: 1080P Wide angle of lens: 90 Battery capacity: 1000MHA Endurance time: about 365 days Quantity of infrared: 6 Night distance: 5 meters Storage function: TF card (maximum support 128GB), excluding Doorbell size: 74 x 46 x 27mm Ding-Dong Machine: 58 x 35 x 16mm Note: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 2. Please allow slight dimension difference due to different manual measurement. Thank