"20 channels are selected, auto or manually scan channel
Handset unit 16 groups rings, ring ON/OFF switch
FSK/DTMF dual system for base unit and handset unit, and
Handset unit long-distance alert
Handset unit and base unit can store 10 groups dialed
Pre-dial function for base and handset units Handset unit
Support up to 3 handset units
"