Fangrui Product Details Two-way Voice Talk - High-definition Pixel Doorbell, Video Calling, Voice Changer. Remote Control - Two-way Voice Calls, Clear Answers In Real Time, The Visitor And The Host Are Face To Face, Let You At Home At Ease, Go Out At Ease. Infrared Night Vision - Not Lose Any Details Even In Darkness. Voice Changer Intercom - Protect The True Identity Of Girls And Children, And Safer. Range Up To 150m - Penetration Distance 30-50m, Open Distance 100-150m. It Is Recommended To Installon Both Sides Of The Door. It Is Forbidden To Install The Doorbellon The Iron Door, Affecting The Signal. Free Cloud Storage - Unlimited Storage In The Cloud, Ready To View At Any Time. Ip65 Waterproof And Dustproof - It Works Both Indoors And Out. 800mah Lithium Battery - Use For About 3 Months And Charge Time Only 1.5 Hours. Colour:black Material:plastic Package Contents: 1 * Tuya Wifi Video Doorbell Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Colo