Poly Blackwire C310/320 Foam Ear Cushions (2 Pieces), Part# 85S15AA Blackwire C725-M Mounting depth of 2” means

Mounting depth of 2” means this speaker can fit into the tightest of ceilings

Increases Incoming Call Volume Up To 40db (increases Incoming Volume Up To 100 Times)

Phone size: 176mm x 50mm x 24mm

Two SFP to RJ45 adapters included

Poly Blackwire C310/320 Foam Ear Cushions (2 Pieces), Part# 85S15AA Blackwire C725-M Mounting depth of 2” meansThe durable Poly 85S15AA Blackwire C310 320 Foam Ear Cushions (2 Pieces) is a Spare Cushion for Blackwire C3200 Series Headsets (Poly 88225 01 or HP 85S15AA) Spare Replacement foam ear cushions. Features: Poly Blackwire C3210 C3220 C310 C320 headsets Quantity per package: 1 cushion NEW IN THE BOX