Tact Switch, Phone Jack, DC Jack manufacturer / supplier in China, offering 3.5 Caliber 4-Pole 5-Pin Silver Plated Patch Earphone Socket Toy Children's Piano Audio Input and Output Earphone Base, DC-022 2.1mm/2.5mm Electrical Connector 3 Pin DC Power Jack, 90 ° Short Body Plug-in for USB Female Base with White Glue and so on.