iSportHelmet: UNIVERSAL Motorcycle/ski/snowboard/sky-diving/extreme-sports helmet earphones with Universal Remote, Volume Adjustment and Microphone. Provide quality music and voice quality, while you bike and/or enjoy your sporting activity. This iSportHelmet works extremely well with KOKKIA iAmplifier + Splitter ( http://www.amazon.com/gp/product/B00GU070XE ), for users who desire additional audio amplification, and/or enjoy music with someone else or their pillion rider. iSportHelmet Specifications: - 3.5mm 4-pole (Left and Right audio, GND, Mic) plug/jack, compatible with 3.5mm audio devices - Microphone positioned for best voice quality - Universal remote control, volume adjustment and microphone works with Apple iPhones/iPads/iPods that support remote control, Samsung, Nokia and most smartphone/devices that support remote control and microphone. - 4 ft cable length (Black color) - Speakers attach easily, securely to inside of helmets via Velcro Control button on remote works on Apple iPhones/iPads/iPods that support remote control, Samsung, Nokia and most smart phone/devices that support remote control - Control button is phone"s play/pause/next/previous button for songs and call pick-up/hang-up - Volume Adjustment turns audio volume up or down, as desired Does not include helmet, audio player/phone, bluetooth receiver device