Lookatool&reg; 1PC KZ-ED9 Super Bowl Monitoring Headphones HIFI Earphone Headset With Microphone KZ ED9 Super Bowl tuning T-shaped nozzles monitoring headphones HIFI high-resolution headphone driver. The ED9 headset is just not an exaggeration. All three frequency bands are balanced. Treble is smooth, medium are not crowded and down is not booming. Supplied with tuning nozzles, allowed users to tune the sound to your desire. Shining silver surface, simple and textured. Innovative T-shaped pole piece driver unit:In traditional driver inside is not closely linked, causing the sound to be less consistent bright andd. The built in Magent causes the diaphragm driver sag down over time, the sound deterioration.The new Driver Unit Effectively eliminates the negative pressure on the driver, providing clear, Soft touch sound and better extension vocals. New vibrating diaphragm Pek:The diaphragm and vocal cords headphones, plays a decisive role in sound quality. ED9 choose High end diaphragm Pek. Compared with ordinary PET diaphragm, diaphragm Pek is lighter and thinner, faster frequency vibration. With extremely sensitive and rapid response force, ED9 show a more pure vocals, dynamic bass texured. Update tune nozzles:ED9 tune nozzles has a new design that GR and other headphones, Nozzles have a better balanced and bass sound effect. Super Bowl increased average sound effect:Innovative design nozzles that end as bowl. Improves mids crowded 'disadvantages of the traditional sound chamber, improving the width of sound frequency range. Average are more natural and consistent. musical acoustic level metal box Instruments:Many musical instruments are made of copper. Copper has high rigidity, and may further reduce the sound degradation. Increase the resonance effect, the tone is clear and bright, reproduce the full FRESH and extremely dynamic sound. Style: intra headset. Connectors: 3.5mm. Packing: yes. Use: cell phone. Function: Noise-canceling microphone. Communication: Wired. Model Number: ED9 Headphone. Frequency Response: 7-46200Hz. Sensitivity: 108dB. Input Impedance: 18. Driver Unit: T shaped unit driver. Driver Type: Moving coil. Material: metal. Cord Length: 120 cm / 3.9 ft. Weight: 22g / 0.77oz. With microphone.