Features: High Quality and creative Radiation Free Air Tube headphones. Five-fold to protect your health: wireless BT + air tube + Anti-radiation double acoustic concentrators + No magnetic tune trope + No magnetic field radiation earplugs. Earplug: made of medical silicone, non-toxic and harmless, soft, sound cavity eliminates permanent magnetic field equipped with rubber and fixing bar. Anti-drop Earplugs: human engineering design, wearing comfortable, uneasy to fall off when you are doing exercises. Air tube: made of imported PU material, good elasticity and high strength, patented technology reduces mobile phone radiation, producing perfect effect. Anti-radiation double acoustic concentrators: made of high-quality material, make tone quality more clear, give you stereo experience. BT function: put mobile phone away from body, press the function key to start or end a hands-free call. No magnetic tune trope: to eliminate the speakers permanent magnetic that is harmful to brain. Achieve 98% Radiation reduction, suitable for various people, like kids, pregnant women, etc. Smart to connect with two cell phones, switch call/music freely. With Mic and answer/end call button. With BT, compatible with almost all BT supported devices. Like PC, cell phones, desktop, MP5/4/3, etc. Back clip-on design, easy to carry and wear, clip on your T-shirt, jacket, etc. Release the burden of your ears. Excellent deep clear sound. Note: 1. please keep radiation free earphone away from sharp tools to avoid damages and scratches. If the air tube is damaged, the earphone is damaged.