push push switch : 1.Passed ISO9001,ISO14001,ISO/TS16949 2.Rotational life : 100000 cycles 3. Brand: ALPS Rotary encoder Potentiometer and switch use for Sound Instruments, car amplifier, DVD player and GPS navigation We produce rotary encoder, potentiometer and switch.rotary encoder,potentiometer and switch for musical instruments, audios,medical equipment, Walkie talkie,DVD,GPS navigation,toys ...