HamiltonBuhl HygenX 2.5" Disposable Sanitary Ear Cushion Covers for On-Ear Headphones and Headsets (Black, 50 Pairs) Kopul M3050-O This RFM69HCW module operates on

This RFM69HCW module operates on the 915MHz frequency and is capable of transmitting at up to 100mW and up to 300kbps

and 12V (Power for the 7-segment display)

Hooded Glass with 30/70 Beamsplitter

you can use 2mm sockets instead

avoid sewing close connections by machine as the ‘hairs’ could potentially short across small distances

HamiltonBuhl HygenX 2.5" Disposable Sanitary Ear Cushion Covers for On-Ear Headphones and Headsets (Black, 50 Pairs) Kopul M3050-O This RFM69HCW module operates onFor On Ear Headphones Hypoallergenic Material Full Sound Quality Comfort and Protection. Tissue Box Style Dispenser Box One Box, 50 Pairs All product and company names are trademarks or registered trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.