This FK308 is designe to create a port in the telephone circuit which allows forthe insertion of music (or advertising messages) when the caller is put on hold. The circuit requires no additional power. However its efficiency ensures practically no load on the telephone line. The FK308 is an economical easily built accessory for home, shop or office.
- Power Supply : Not required
- PCB Dimensions: 45.7 mm X 41.4 mm X 15mm (1.88 X 1.63 X 0.6 in.)