Philmore Telephone Recording Pickup Coil Suction Cup Microphone, 5-ft Cord
Use to record telephone conversations.  Will pick up both sides of a telephone conversation for recording or amplification, on either the old type phone or newer phones.  Attach the suction cup to the handset behind the earpiece, and plug the 3.5mm mono connector into any standard recording device. Uses inductive coupling, to reduce external noise. Color: Black.  3 ft shielded cable.  Suction cup is approximately 1" in diameter.