RCA INSERT with white center plug connects cables to RCA jacks; Connects equipment with RCA ports like a subwoofer, stereo receiver, or other equipment with RCA component audio and video ports; Fits a standard wall plate opening. RCA COUPLER with female connectors on both sides connects to an RCA cable hidden behind the wall; Connect a subwoofer to the perfect location near an accessible wall plate. ROBUST RECESSED CONSTRUCTION: The RCA keystone jack provides a secure connection; Reusable keystone jack inserts can be easily disconnected and relocated when upgrading or redecorating; Gold-plated RCA connectors ensure a reliable connection and deliver authentic audio and video. QUICK SNAP-IN INSTALLATION: Easily snaps into standard trapezoidal wall plates, patch panels, or surface mount boxes; Compatible with almost all types of wall plates. VALUE 5-PACK: Provides enough inserts to connect 5 audio system component cables. Color: Yellow+White+Red Material: Plastic + Metal Package Contents: 5 * RCA Jacks (Note: Other products are not included. Light photography and different displays may cause the color of the item in the picture to be slightly different from the real one. The allowable measurement error is +/- 1-3 cm.)