Patent ID: 8824439

Claim:
A combinatorial mobile hotspot device, comprising: a wireless service power supply device, comprising: a battery unit, supplying power; and a wireless local area network transceiver, having a wireless local area network access ability; and a network access device, comprising: a connection interface unit; and a central processing unit, determining the connection interface unit to be operated in a host mode or a device mode of a dual working mode, wherein the network access device is selectively and electrically coupled to an external host machine or the wireless service power supply device through the connection interface unit, and has a mobile Internet access ability, connecting to a wide area network, and a wireless access point service, operating and controlling the wireless local area network transceiver; wherein, the network access device is operated in the device mode when the network access device is electrically coupled to the external host machine; and the network access device is operated in the host mode when the network access device is electrically coupled to the wireless service power supply device; wherein, if the network access device and the external host machine are electrically coupled to each other, the external host machine is connected to the wide area network through the network access device; wherein, if the network access device and the wireless service power supply device are electrically coupled to each other, the network access device receives the power supplied by the battery unit and turns on the wireless access point service to operate and control the local area network transceiver to establish a mobile hotspot network, and the mobile hotspot network provides a plurality of electronic devices to exchange data and access to wide area network data.