Sennheiser MX 75 Sport Neon Green Headphones/Earphones - MX 75

Product Details

Sennheiser MX 75 Sport Headphones/Earphones, Model MX75

The new Sennheiser Sport Line is the partner for sports. Even when you're going flat out, the headphones guarantee a secure fit and superb wearing comfort. All materials used are extremely robust, long-lived and also sweatand water-resistant. In keeping with Sennheiser's reputation powerful neodymium magnets ensure a brilliant and detailed sound.

Features:

• Stereo earphones with Twist-to-fit system
• Innovative holding design (Twist-to-fit system) ensures best-possible fit
• Powerful neodymium magnets for detailed sound
• Sweat- and water-resistant
• Extremely rugged earphones and cable
• Accessories: ear adapter set, cable clip and carrying case

Feature Details:

• Transducer principle
  Two transducer principles have become established for the conversion of electric energy into mechanical energy: electrodynamic and electrostatic transducers, whereby the latter is only to be found in audiophile systems, due to their relatively high manufacturing costs. Electrodynamic transducers basically consist of a ring-shaped permanent magnet and an oscillation coil, which is fixed to the receiver diaphragm. When an audio-frequency alternating current is passed through the oscillation coil, it is caused to vibrate in accordance with the audio-frequency alternating current, thus causing the diaphragm to vibrate in the same way.
• Frequency response
  The frequency response of a microphone is given within the limits defined by the manufacturer. In studio condenser microphones it is generally within the range of between 20 Hz and 20 kHz.
• Impedance
  Impedance expresses the AC resistance of a microphone or a set of headphones. It is dependent on frequency and is given at 1 kHz as the so-called nominal impedance. Impedance is measured in ohms. In recent years, an industrial standard has developed, setting the impedance of headphones at 50 or 600 ohms. Sennheiser headphones are manufactured according to this standard, thus practically ruling out connection problems. With microphones, the input impedance of the following microphone amplifier should have at least three times the value of the nominal impedance, in order to prevent it from unnecessarily attenuating the microphone signal.
• Ear coupling
  A distinction is made between headphones which are worn on the external ear (supra-aural) and those which surround the ear (circumaural). Open headphones have foam ear pads that rest on the ears or ring pads that surround the ears. Closed headphones, on the other hand, nearly always have circumaural ear pads.

Specifications:

• Design: Stereo earphones with twist to fit system
• Transducer principle: Dynamic
• Frequency response: 18-21,000 Hz
• Impedance: 64 Ohm
• THD: <0.1%
• SPL (1 kHz, 1 Vrms): 117 dB
• Ear coupling: Vertical In-ear
• Connecting cable: 3.9 ft; asymmetrical
• Audio connector: 3.5 mm straight stereo mini-jack plug

Box Contents:

• MX 75 Sport earphones
• Ear adapter set
• Cable clip
• Carrying case

Approximate Dimensions:

• Packaging Dimensions:
  • Width: 3.86" (98mm)
  • Height: 8.58" (218mm)
  • Depth: 1.89" (48mm)

Approximate Weight:

• Unit (without cable): 0.014 oz
• Shipping: 0.282 lbs (128g)

Features and specifications are subject to change without notice. Non-metric weights and measurements are approximate.

Questions and Answers