Model No.: RTB8866
Main Features(Reference)

1.FSK/DTMF compatible  
2.Two-way speaker
3.Real LCD week and date display
4.50 incoming call and 14 outgoing call memories
5.16 kinds of normal ring selectable
6.P/T dialing mode adjustable
7.5 levels of LCD brightness adjustable
8.4 levels of handsfree volume adjustable
9.3 levels of ringer volume adjustable
10.Redial, Flah and Pause function
11.key lock function
12.Hold on music