Abstract: The present invention relates to a handheld apparatus with a detachable audio device. By making the audio device of the handheld apparatus a detachable audio device, the handheld apparatus connects to the audio device through a card slot to make the audio device detachable from the card slot for being an external audio device with wireless interface. In addition, the handheld apparatus installs a first connector in the card slot to connect to a second connector of the audio device for making the handheld apparatus charge the audio device. Thereby, using time of the audio device is extended due to charging from the handheld apparatus. The present invention combines a handheld apparatus and an audio device with wireless transmission functionality into an integral apparatus, which can be used in the whole. Alternatively, the audio device can be used individually to converse or perform operations related to the audio device.