Magnetically shielded 10 cm (4") fullrange speaker with high efficiency, balanced frequency response and high frequency rise for good off-axis speech intelligibility. Water-repellent cone and rubber gasket. Especially suitable as speaker for public applications and public transport systems. With 100 V transformer. An Adels-Contact push-terminal block, which can be fixated via catch pins, allows quick and easy connection to a 100 V network.