Sound of QualityThe delicate aluminium chassis is designed for delivering clear highs naturally without distortion. The silicone caps personalise comfort fit and isolate noise efficiently.Main features- The precisely milled aluminium chassis transmits a perfect balance of high and low frequencies- 3 sets of silicone caps (S, M, L) minimize ambient noise and enrich bass response- Ultra-soft material fits gently in your ears providing hours of wearing comfort- Gold-plated stereo plug for uncompromised signal transmissionMid-Range earphone ARCTIC SOUND E231If you are not a bass enthusiast, the E200 series would be an option. Pleasant bass, fine highs and clear vocals are reproduced by the driver coils. Same as the E300 series, the E231 also features a precisely milled aluminium chassis for delivering enriched sound definition.Comfort fit, sound isolation and enhanced bass by soft silicone capsTo achieve top-notch listening experience, E231 is packaged with 3 sets of ultra-soft silicone caps in small, medium and large sizes. Wearing comfort can be personalized by choosing the most suitable cap size that fits best for your ears, so that they stay comfortable even after prolonged use.The “seal” in the ears blocks ambient noise efficiently so that you hear only the sound from the earphones and nothing more. Even when you are on a plane, with the ARCTIC SOUND earphones, you will hear your favorite music instead of the ambient noise. Such high-level sound isolation also enhances bass response and improves the overall sound quality.Multi-functional and multi-compatible earphonesThe E231 also features a microphone version. This delicate microphone is ideal for phone calls and online communications such as Skype and MSN voice call.A 3.5mm TRRS plug is equipped for transferring both microphone and earphone signals, which is ideal for mobile phones. For devices such as PCs, which support only the standard 3.5 stereo plug, it is necessary to use the adapter provided to use both the earphones as well as the microphone.