包含950种电力相关音效素材，比如旧电话、电报机、发电机轮、旋转拨号盘、旋转观察器、警报器、实验室离心机、滚轮和摇杆、霓虹灯、威姆斯赫斯特机器和烟火等，WAV无损格式

Polarity delivers more than 950 sounds of electricity, science and technology – captured in several locations around the world, from electricity museums to science labs. About 50% of the library is all about electricity, with various types of Jacob’s Ladders, Tesla Coils, Ruhmkorff lamp and all sorts of impactful bursts of energy.

Then we go through welders, plasma spheres, 3D printers, starting to cover a more broad technology theme – like old phones, telegraphs, dynamo wheels, rotary dials, whirling watchers, alarm, lab centrifuges, something scientists call a roller and a rocker, servo sounds, neon lights, a wimshurst machine and sparklers.