In the month of August, 2018, GBF new wireless door chime was released. GBF new wireless door chime works with all GBF new skyboxes .
The new wireless door chime is compatible with the following GBF product lines:
- GBF smart four wire door phone/doorbell (Four wire intercom system) GBF-PL960QC4 kit and GBF-PL270C4 kit.
- GBF wireless video intercom doorbell system for multi unit apartment building for 2/3/4/8 units.
- GBF multi units single wire smart intercom system.