A terminal and a system capable of reducing noise generated in a process of plugging or unplugging an earphone. The terminal includes: an earphone socket, a switch circuit, an earphone power supply circuit, and a bleeder circuit, where a first pin of the earphone socket is connected to a control pin of the switch circuit, a second pin of the earphone socket is connected to an input terminal of the switch circuit, a first output terminal of the switch circuit is connected to the earphone power supply circuit, and a second output terminal of the switch circuit is connected to the bleeder circuit.