Artfone Brand Model Name CS181 GSM Wireless Carrier All Carriers Android 10.0 Operating System 2G Cellular Technology 32GB Memory Storage Capacity Bluetooth Connectivity Technology Color Black Screen Size 1.8 Inch GSM Wireless Network Technology See More About This Item [New Operating System [User Interface]All-new OS features bigger fonts, clearer menu icons, amazing speakers and high clarity. It is equipped with audio, video, Bluetooth, FM audio, calculator, alarm clock, calendar, can store up to 100 entries in the phonebook, very easy for the elderly, children and the blind. <p >[Upgraded lithium battery]The built-in 800mAh rechargeable battery, talk time 3-4 hours, standby time 190-200 hours. Updated lithium battery has longer life, faster and safer charging. [With SOS Emergency Button] Artfone can set 5 SOS call numbers. In an emergency situation such as an accident, it is important to be able to react as quickly and easily as possible. With the emergency button, you have a direct line to a previously selected phone number. [The voice broadcast function] When making a phone call, pressing the appropriate number of buttons, the phone will send a corresponding number of voices, to ensure that the elderly do not press evil, the current voice support language is English, German, Spanish, French and Italian . You can also turn off the voice. [2G GSM Quad Band 850 or 900 or 1800 or 1900]Compatible with any carrier that accepts a 2G GSM SIM card, for example: T-Mobile, Straight Talk, Simple Mobile etc. This phone is a no-contract button phone, you can choose the carrier package that suits you. This phone supports all European 2g networks and is suitable for making phone calls and sending text messages, but does not support internet access.