Skip to content Skip to footer

The property of certain crystals that causes them to oscillate when subjected to electrical pressure (voltage).

2
    Your Cart
    Exploring Windows 10: May 2020 Edition
    Exploring Windows 10: May 2020 Edition
    1 X £19.99 = £19.99
    Windows 11 for Seniors - 2024 Edition
    Windows 11 for Seniors - 2024 Edition
    1 X £19.99 = £19.99