Description
SP21-AIRCALL earphones eliminate radiation transmitted by standard earphones.
Made with air tubes instead of wires, they block 99% of radiation near the brain.
Triple patented technology.
Accessory (without CMO technology).
For iPhone/iPad, use the Lightning connector.
SCOPE OF APPLICATION:
Protection against electromagnetic radiation in direct contact with the inner ear.
- Eliminates electromagnetic fields emitted by electrical currents powering standard headphones.
- Prevents the electromagnetic propagation effect of cell phones through the electrical cables of standard headphones.
PROPERTIES
Acoustic chambers: distance from the brain.
The miniature speakers in “standard” permanent magnet headsets generate magnetic induction (and therefore an electromagnetic field) very close to the brain. With SP21 AIRCALL, the earpieces placed in the ear canal contain no magnetic elements or elements capable of generating electromagnetic fields. The transducers are located at a significant distance from the brain, in two small chambers or sound cavities: this distance corresponds exactly to the recommendations of the WHO (World Health Organization), confirming that distancing oneself from electromagnetic fields is the most effective way to reduce their effects.
- Wireless transmission through a hollow tube
- The sound is then generated by transducers vibrating the air in the hollow tube
- Cable shielding
- From the jack plug onwards, all wiring is covered with insulating shielding made of pure copper wire, preventing external dissipation of electromagnetic fields along the wired section. All these properties justified the Chinese army’s decision to equip its pilots with this patented technology.
- Safe distance from the brain with SP21 AIRCALL
- Thanks to a 1.26-meter cable, the SP21 AIRCALL headphones keep the brain away from any electric or electromagnetic fields (from the cables and components of the headset). This distance explains the reduction in exposure of more than 99%. SP21 AIRCALL headphones are equipped with a patented acoustic chamber system (sound cavity) for each ear: sound is reproduced by amplification in the acoustic chamber, then transmitted to the ear via an air tube.
INSTRUCTIONS FOR USE
The SP21 AIRCALL is used like any other headset: a jack plug allows standard connection to all cell phones, a small clip (supplied) keeps the earphones at the right height, and the ergonomic shape of the earbuds ensures optimal support, whether in the car, on the train, or while jogging. The kit comes with a pair of replacement membranes; if you need more membranes, contact your local distributor.
NOTE: The SP21 AIRCALL prevents the propagation of electromagnetic fields along standard headset cables.
GUARANTEE ADVICE FOR USERS:
- Avoid plugging the headphones into the audio jack of the laptop when it is stored in a bag. This tends to exert excessive mechanical stress on the jack plug wires and cause them to break prematurely, which is not covered by the warranty.
- Do not wrap the cord around the notebook for the same reasons.
- Warning to users of pacemakers and defibrillators: In accordance with the principle of optimal precaution, and due to the presence of a permanent magnet in the transducers, this product is contraindicated for users of pacemakers, as with any standard headphones. Note: The influence of the CMO on its environment is given for information purposes only, but it cannot be considered a precise measurement: here, it is the effectiveness limit of the corrective effect that is estimated using the RAC (auricular-cardiac reflex) method.
RETURNS! For hygiene reasons, our satisfaction or money-back guarantee does not apply to this product. No exchanges will be accepted for items that have been opened or used. Thank you for your understanding.








