Dr Mercola Blue Tube Headset 1 Unit, Air Tube Headphones Reduces EMF Exposure, Radiation Free Metal Binaural Earbuds Earphone with Microphone and Volume Control Compatible with 3.5mm Jack Devices ANTI-RADIATION TECHNOLOGY: Dr. Mercola blue tube headset uses hollow, air-filled tubes to convey sound from the chest to the ear, preventing radiation from your phone from traveling up the air-filled tubes to your head. KEEP DISTANCE BETWEEN MOBILE & EAR: With the Blue Tube Headset, you effectively move your cell phone away from your head, reducing your exposure to radiation. Whether using it occasionally or regularly, you can feel comfortable that direct exposure to radiation is significantly reduced. If you have concerns, it would be prudent to reduce radiation exposure. FULL COMPATIBILITY: 3.5mm jack provides compatibility with Apple, Android, Windows and any other smartphones. It can also be used with MP3 players, tablets, laptops and more devices. ADVANCED ACOUSTIC TECHNOLOGY: Our Blue Tube Headset features advanced acoustic technology, delivering sound wave-based and not radiation-based communications, superior communication and hassle-free use by combining enhanced speaker for louder, clearer sound, internal wiring system that reduces feedback and distortion and more ergonomic positioning. 100% MONEY-BACK GUARANTEE: Dont worry about money, we are so convinced in our blue tube headset that if they don't live up to your expectations you can send them back for a full, complete refund so you have nothing to lose! Enhanced speaker for louder, clearer sound Specially designed internal wiring system that reduces feedback and distortion More ergonomic positioning  the sound chamber hangs freely in the air between your cheek and collarbone, reducing contact with your body Effectively reduces cell phone radiation with the RF3 Aircom 2 patented technology. Delivers state of the art, crystal clear stereo sound with dual earbuds, using advanced acoustic technology featuring air-filled wireless tubes and advanced sound chambers. Is retractor-free  no more stuck or tangled cords. Provides dependable, trouble-free operation for everyday use. There are no metal conductors in the airtubes or earpieces like other hands-free units that can boost radiation. Now comes with 3 sets of foam ear tips - Small, Medium, and Large  to fit almost any size ear. All included.