They are super strong rare-earth magnets. Once they get stuck with each other, they are hard to break apart.
They can be also used to extend protected lithium batteries with recessed contact points.
Electrically conductive (making them suitable to extend recessed contact batteries.)
Great for do it yourself projects.
Usage:
1. Acoustic field: the speaker, receiver, microphone, alarm, stage audio, car audio and so on.
2. Electronics: permanent magnetic actuator vacuum circuit breakers, magnetic relays, meter, sound meter, a reed switch, sensors.
3.Electrical field: VCM, CD / DVD-ROM, generators, motors, servo motors, micro-motors,motors, vibration motors.
4. Machinery and equipment: magnetic separation, magnetic crane, magnetic machinery.
5. Healthcare: magnetic health products and so on.
