5 X Clear Replacement Acoustic Tube With Elbow for Two-Way Radio Audio Headset Kit (5 Packs) Compatible with:Covert Acoustic Tube Earpiece of Walkie Talkie Two-way Radio Replacement Snap on Secret Service / FBI style acoustic coil tube. Includes tube, silicone tip, connector, and metal clip. This snap on unit is for headsets requiring a snap on round connector Includes tube, silicone tip, and twist on connector Dynamic Designs Snap On Acoustic Tube with Noise Reduction Ear Tip This Military Grade Unit is Perfect for Professional Rugged Applications. Medical Grade Clear Acoustic Tube Up to 42 dB Noise Reduction