1.Electromagnetic wave (EMF) canceller Features: 1. Eliminate the electromagnetic interference wave generated by the system 2, ultra-thin, 4.2V lithium battery or 4 sections 1.5V battery suitable for the various types of models Scope of application: HIFI and AV type type electric appliance products Application Principle: Generate “notch”, cancel the electromagnetic wave generated by the transformer … Continue reading New product in April