4G volte dual SIM card supports video calls The phone comes with a recording app (or download the record APP in Google paly store) Video calls via whatsapp, skype, WeChat, etc. Smooth operating system, equipped with andriond 9.0, supports Google Play Store SOS call and one-click call for the elderly Processing incoming call application automatically pops up Control door camera through tuya IOT control Large speaker and noise reduction LED indicating charging and incoming calls Wi-Fi and hotspot, multi-language Wall-mounted Dual SIM card and battery charging for home/office/restaurant/hotel/hospital Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage:AC 220V Colour:Black Material:ABS Package Contents: 1 * Telephone landline