The challenger earphones are perfect to use when wearing a helmet is required, like listening to your iPod on your motorcycle. They are perfectly suited to your ear and do not move.

They are used by musicans as econimical stage monitors.

Advantages of custom earphones Challenger :

• Perfect for sports
• Comfortable under a helmet (not exceeding)
• Best sound-proofing from environment noise
• Reduce the sound pressure at eardrum to protect your hearing
• With a 25dB isolation, you can get away in your musical world