- Overload protector
- Earphone Jack
- AC POWER JACK SERIES
- XLR connector
- Metal Push Button Series
- HP (SPEAKON) audio socket
- RCA PIN JACK SERIES
- PTB external socket
- TD touch switch
- JT rocker switch
- POWER JACK SERIES
- PS key switch
- Straight key switch
- Ohter
- Home appliances accessories
- Car accessories
PTB external socket
