Product Details:Acoustic tube secret service listen only earpiece headset.The discreet acoustic tube ear piece fits perfectly in ear and allows you to hear in high noise environments and maintain private communication.Receiver only (no transmit) 3.5mm plug (standard headphone jack) with acoustic tube and metal clip. Compatible Models: Most Radios with 3.5mm headset jack or Hand mic with 3.5mm headset jack Can be used for iPod, iPod Nano, MP3 player, phone, CD player, portable FM AM radio, shoulder microphone, etc. Package Includes: 1x Covert Acoustic Tube Earpiece Only Listen 3.5mm (1 Pin) Please ensure that your address and phone number are correct to avoid unnecessary losses. If you have any problem, you can contact me. If you need more quantity pls feel free to contact us!Your support is our driving force. (｡◕ˇ∀ˇ◕)1 Year Warranty & 60 Day Money Back Guarantee - US Seller - Same Day Shipping