HP Blackwire 5210 C5210 USB-C

Ply BW 3315 HS - 3.5MM

HP Part# 85R07AA

Headphones/Earphones – Headset - Over-the-head - On-ear - Monaural - 0.56" Driver Size - Boom - Blackwire - Black - Black - Wired - Supra-aural - Computer - Portable Electronics - Mono - Mini-phone (3.5mm) - 3.80 ft Cable ...

Poly Blackwire C510/520 Case

HP Part# 85Q71AA

Carrying Cases – Case - Poly - Headset - Poly - Blackwire C510, ? Blackwire C520