·  8.3'' Colour Video Doorphone (Set).
·  Outdoor and indoor unit can match arbitrary.
·  Avariety of models for choice.

·  More than 2 sets indoor phone can be internal intercom, 3 sets outdoor station can be dragged with 6 sets indoor phone, freely matching, meet the different users. To facilitate sales.

Scope：

Villa、Family、Office、Authority units Etc.