JK AUDIO VOICE OVER TELECOM AUDIO HANDSET INJECTOR

Designed to thwart anyone with the audacity to put you on hold, the Telecom Audio Voice Over is a device that allows you to listen to anything you want to whenever you're on hold. Operation is simple: plug the base of your telephone into one of the phone jacks, and your headset into the other. Then, you plug your favorite compatible media player into the stereo or mono 3.5mm jack.

Now, you can play music or podcasts over your phone's headset whenever you're on hold—or even when you're not: if you want, you can keep the music blasting, and the person on the other end of the line will never hear it.