Abstract: An exemplary remote controller for a mobile internet device includes a remote control module, a center control module, and a wireless transmitter. The mobile internet device includes a wireless receiver disposed therein. The remote control module generates a control signal. The center control module determines whether the control signal is legal. The transmitter reads out a wireless data from the control signal and transmits to the wireless receiver. A remote control system and method thereof are also provided.

Abstract: An exemplary remote controller for a mobile internet device includes a remote control module, a center control module, and a wireless transmitter. The mobile internet device includes a wireless receiver disposed therein. The remote control module generates a control signal. The center control module determines whether the control signal is legal. The transmitter reads out a wireless data from the control signal and transmits to the wireless receiver. A remote control system and method thereof are also provided.

Abstract: The invention discloses a portable media player for playing DVD and IPOD including a base (1) defining a first docking bay (3) for a DVD host and a second docking bay (4) for a IPOD, a cover (2) with a display attached to the base, and a locking device (5) attached at the base for obstructing the detachment of the IPOD. The locking device includes a through hole (7), a resilient piece (8), and a protruding member (9). The base has a rotating shaft (6) and a groove (10). When the resilient piece is engaged into the groove, the protruding member is adjacent to the IPOD and obstructs the detachment of the IPOD.