VTech 15850 User Manual page 19

This range extender doubles the effective transmission
distance between the base unit and the cordless
handset. Place your VTech Range Extender(s) in
different places at your home or business, and enjoy
talking further away from the base than ever before.
Range
extender
Handset
Base
Range
Range
extender
extender
MOBILE
Handset
Handset
19