Photocoupler
The PN4391 provides remote data service for bass level control (less than 30 ohms). This T-shaped attenuator provides maximum dynamic linear range. If it is completely disconnected, the attenuation at 10MHz will be greater than 100dB. This requires proper RF construction techniques.
ZGAR Glo-X Prefilled Cartridge
Zgar International (M) SDN BHD , https://www.zgarvape.com