Features: 1.Powerful Functions: Senior flip phone supports 2G GSM quad band 850, 900, 1800, 1900 and dual SIM cards. It does not support 3G, 4G, etc. Consult your mobile service provider to ensure 2G network compatibility. Support making, receiving calls, SMS, camera, MP3, MP4, FM, Bluetooth, recording, e books, picture browser, alarm clock, flashlight, calculator, calendar, SOS button, internet function and more. 2.Dual Screen Display: The flip phone has a 2.4in internal HD color screen and a 1.77in external preview display, which is large enough to view and use easily, and external preview display allows you to see who is calling without opening the phone. Supports dual SIM cards, and memory cards with a maximum capacity of 16GB (not included). 3.Large Buttons With Backlight: This mobile phone is designed for the elderly, the big button with micro bumps and a large keyboard is convenient for the elderly to operate, the backlight design lets parents see more clearly even in the dark, and high volume speaker with optimized hearing for the elderly, more intimate. 4.SOS Emergency Help: With SOS button, you can quickly make calls. You don't need to scroll through your address book, you can dial with 1 click. A maximum of 8 home numbers can be set. Long press the corresponding number key to dial out, easy to use, greatly saving your time. 5.5900mAh Battery: This dual card flip phone is equipped with 5900mAh large capacity battery, reducing the number of charging times, greatly facilitating the use of the elderly. Strong structural design, enhanced shock absorption and drop resistance, longer service life. specification:Item Type: Flip Phone Model: M1 Material: Zinc Alloy, Plastic Weight: Approx. 300g / 10.6oz Screen Size: Internal Screen 2.4 Inches, External Screen 1.77 Inches Card Slot: 2 SIM Card Slots, 1 Memory Card Slot Memory: RAM32MB, ROM32MB Memory Card: Max Support 16G (Excluding) Battery: 5900mah Lithium Battery (Including) Frequency Band: GSM 850 900 1800 1900 Network Type: 2G GSM Camera (Pixel) : 300000 Pixel Bluetooth: 2.0 Radio: FM Multimedia: MP3 MP4 Interface: Micro USB Charging Port Languages: English, French, Spanish, Polish, Portuguese, Indonesian, Vietnamese, Russian, Arabic, Hebrew Product Size: Approx. 111x58.6x19.5mm / 4.4x2.3x0.8in (Folded) PackageList: 1 x Flip Phone 1 x Instructions 1 x Charger 1 x Phone Sleeve NoteSupport 2G GSM (850/900/1800/1900). Check with your Sim card operator whether 2G networks are supported. The phone is fully unlocked, but carriers need to support the product.