Model No.:RTB6682
Main Features (Reference) 

1. FSK/DTMF Compatible
2. 38 incoming and 5 outgoing call memories
3. 1 one-touch memory
4. Area code and long-distance code setting
5. 8 kinds of ringer tone selectable
6. 3 groups of alarm function
7. Real clock, date& week display
8. 3-step lock function
9. Hold on music
10. Pre-dial, redial function
11. Flash time 1000ms/600ms/300ms/110ms selectable
12. 5 levels of LCD backlight adjustable
13. Calculator
14. Blue LCD backlight
15. P/T dialing mode selectable
16. H.F volume adjustable
17. Thunder proof design