A presentation apparatus includes a power management module, a storage unit, an amplifier amplifying an audio signal based on an audio control signal, a socket receiving the amplified audio signal from the amplifier, a detection circuit, a plurality of buttons, a wireless receiver/transmitter and a processing chip which connects with the power management module, the storage unit, the amplifier, the detection circuit, the buttons, the wireless receiver/transmitter to control the movement of a cursor, receive/transmit an audio signal, output the audio control signal, and determine the type of plug plugged into the socket according to the detection circuit connecting with the socket.