Purchase CLASSIC PRO's popular CPE4000 in-ear earphones and receive a free pair of Sound House Sister crew socks! The CPE4000 comes with green socks, while the CPE4000CL comes with orange socks.
The campaign runs through Monday, August 31, 2026. Don't miss this offer!

Eligible Product: CPE4000
Gift Item: Sound House Sister Crew Socks (Green)

Eligible Product: CPE4000CL
Gift Item: Sound House Sister Crew Socks (Orange)

Campaign Period: Through Monday, August 31, 2026