Abstract: Provided is a dongle that is connected to a portable terminal for providing a mobile banking transaction service with a banking equipment that includes a banking transaction unit for providing a mobile banking transaction service with a banking equipment; an FM transmitter for outputting a sound source played in a portable terminal through a speaker of an external FM receiver; a charger for receiving an external voltage to charge the portable terminal; and a connector to be connected to the portable terminal simultaneously or individually in order to perform functions of the banking transaction unit, the FM transmitter, and the charger. The banking transaction related components are implemented with a single separate device, i.e., dongle, and can be mounted when necessary. Therefore, a separate banking related module (software and/or hardware) is unnecessary, thereby slimming the portable terminal.

Abstract: An apparatus for receiving an image signal for reproduction from a multimedia device, which includes an interface for outputting the image signal for reproduction to the outside, and wirelessly transmitting the image signal to the outside includes: an interface unit, which is combined with the multimedia device via the interface of the multimedia device and then receiving the image signal for reproduction; and a Radio Frequency (RF) transmitter for wirelessly transmitting the image signal, which has been received via the interface unit, using a predetermined channel of an Ultra High Frequency (UHF) band.