[. . . ] Contains small parts and cords that may pose risk of choking or strangulation. Set the volume level of the audio device to a minimum, and then after connecting the earphones, adjust the volume gradually. If you connect these earphones to an airplane's sound system, listen at low levels so that loud messages from the pilot do not cause discomfort. [. . . ] Do not use while sleeping as accidents may result. Use a slow twisting motion to remove the earphones. Stop using the earphones immediately if they are causing great discomfort, irritation, rash, discharge, or any other uncomfortable reaction. If you are currently receiving ear treatment, consult your physician before using this device. ©2010 Shure Incorporated 27A13835 (Rev. 2) Detachable Cable You may need to detach the cable from the earphones to attach optional components or to replace the cable if it becomes damaged. · Grasp the connector and the earphone as close as possible to where they join. · Do not pull on the cable or put any pressure on the earphone nozzle. · When reattaching the cable, match the "L" and "R" markings. For clear cables and earphones, match the color dots (Red = Right, Blue = Left). Note: If you pull at an angle, the connector will not detach. Changing Sleeves Twist and pull to remove the sleeve from the nozzle. Slide on a new sleeve so that it completely covers the barb and the nozzle. Caution: If the barb or any of the nozzle is exposed, the sleeve is not properly installed. To ensure proper fit and performance, use only sleeves supplied by Shure (unless using custom molded sleeves). Audible click when properly seated Wearing the Earphones The following are some suggested ways of wearing the earphones. Removing the Earphones Grasp the body of earphone and gently twist to remove. Note: Do not pull on cable to remove earphone. Over the ear in back Wearing the cable over the ear and securing it behind the head can help keep the earphones in place during physical activity Tighten the cable and take up slack by raising the cable cinch. Choosing a Sleeve Select an earphone sleeve that provides the best fit and sound isolation. Made from pliable rubber. Inserting the Earphones Insert the earphones so they form a tight seal. Soft Foam Sleeves: Compress the foam sleeve between your fingers and insert into the ear canal. Hold in place for about ten seconds while the foam expands. Triple-Flange Sleeves: If desired, use scissors to trim the stem on the sleeve. Important: If there seems to be a lack of low frequency response (bass), this means that the earphone sleeve is not forming a tight seal. [. . . ] Doing so will void the warranty and could result in personal injury and/or product failure. · Note: The cable connectors to the earphones may collect debris or other deposits that can affect audio quality. If this happens, disconnect the cables and clean them using a dry cotton swab. [. . . ]