Fangrui Product Details 1. Features: 1. 4g Wireless Landline Phone - Supports Gsm850/900/1800/1900mhz, Caller Id, Saves More Than 100 Sms On The Phone, 7-level Adjustable Headset Volume And Mute, Storage Of 20 Missed Or Received Calls And The Ten Most Recently Dialed Numbers. More Functions Are Described In The User Manual. 2. Powerful Battery - Built-in 3000mah Nimh Battery Provides Up To 2.5 Hours Of Talk Time And 150 Hours Of Standby. (depending On The Network Environment) 3. Multifunctional Phone - It Is Not Only A Tool For Making Calls, But Also An Alarm Clock And Fm Radio Function. 4. For Seniors - With Large Buttons And Clear Font, It Is Suitable For The Elderly. 5. External Antenna - The External Antenna Makes The Received Signal More Stable, Eliminates Disconnection Problems, And Ensures Clear And Free Communication In Every Call. 6. Specification: 7. Model: F317 8. Color: Black, White (optional) 9. Network Support: Gsm 10. Dimensions: 196x152x51mm 11. Battery: 3.7v 3000mah 12. Gsm Frequency: 850/900/1800/1900 Mhz 13. Power Adapter: Ac: 100-240v; Dc: 5.00v, 0.65a 14. Display: 128 X 64 Dot Matrix Lcd. 15. Package Weight: 700g/26.5oz 16. Package Size: 27 X 19 X 5.5 /10.6 X 7.5 X 2.2 Inches 17. Packing List: 18. 1 X Phone Transmitter 19. 1 X Handset 20. 1 X Phone Line 21. 1 X Battery 22. 1 X User Manual 23. Our After-sales Team Consists Of Experienced, Professional And Responsible Staff. They Will Do Their To Solve Your Problems And Let You Feel Our Sincerity And Care. Buying Our Products Means Choosing Security And Peace Of Mind.