Jayfi JEB-101 Stereo Metal In Ear Headphones Bass Noise Isolating Earbuds Earphones with Mic Aviation Aluminum Black 9.2MM DYNAMIC UNIT:9.2mm dynamic speaker systems with powerful neodymium magnets ensure outstanding sonic accuracy and clarity. FULL METAL HOUSING: It is more corrosion-resistant, anti-aging, solider and durabler than traditional metal headphones;Special alloy can transmit HD sound with great improved effect. It can spread the sound signal as far as possible to the ear;It is very suitable for electronic music, DJ and heavy metal rock music. POWERFUL BASS:With combinations of overall shaping we improved the sound quality of the bass and HIFI through the tuning process;We maximize the bass effect. Clear and authentic sound reproduction is perfect right down to the last detail;The special conductive alloy housing, the unique design of cavity and the excellent dynamic unit enhance its HD sound significantly. REMOTE CONTROL COMPATIBLE SYSTEM: ANDROID Windows Phone iOS,Chrome plated plug, let the 3.5MM plug to be more durable. 1 YEAR WARRANTY