SOS Button & Speed Dial?In case of an emergency, press the SOS button on the back of the phone for 3 seconds to dial the emergency number (5 can be set) and send a text message to seek prompt help from family or friends. The number buttons can also be set to 10 speed dial keys, making it a more suitable flip phone for the elderly. Large Capacity Battery & Charging Dock?The unlocked senior phone is equipped with the latest 1400 mAh rechargeable Li-Ion battery with up to 5-6 hours of talk time and up to 200 hours of standby time. The senior phone comes with a USB cable and charging dock, simply place the simple phone into the charging dock for faster and safer charging. Classic Flip Cover Design & 2.8" LCD Screen?The classic flip cover design gives the flip phone a smaller body with large buttons and a large screen. The large buttons for easy dialling, large screen for easy reading, large volume for easy listening, and the simple KaiOs operating system make the flip phone very easy to use for seniors and teens. It is the perfect gift for seniors, kids and students. Dual Camera 4G SIM-Free Unlocked Elderly Phone?Front and rear cameras can take photos or videos to record daily life moments. The flip phone is compatible with any mobile network provider that supports 4G networks (compatible with 2G and 3G networks). New KaiOS Intelligent Operating System?Support Google App Store APP download and install independently (WhatsApp, Facebook and Google Maps are pre-installed), built-in video, Bluetooth, FM audio, calculator, alarm clock, calendar and maps, etc., which is very convenient for the elderly and children to use.