Amazon.com: Sennheiser RS 170 Digital Wireless Headphones (Discontinued By Manufacturer)
Amazon.com: Geekria Protein Leather Headband Pad Compatible with Sennheiser RS160, RS170, RS220, RS185, Headphones Replacement Band, Headset Head Cushion Cover Repair Part (Black)
Replacement Ear Pads With Headband Earpads Earmuffs for Sennheiser RS110 RS160 RS170 RS180 HDR160 HDR170 HDR180 Headphone - AliExpress