Shure Incorporated
21/22
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
at ½ hour
at 15 minutes
Avoid or damage may occur
WARNING
Do not use when a failure to hear your surroundings could be dangerous, such as while driving, or when biking, walking,
or jogging where traffic is present and accidents could occur.
Keep this product and its accessories out of reach of children. Handling or use by children may pose a risk of death or se
rious injury. 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 gradu
ally. Sudden exposure to loud noises could cause hearing damage.
Turn up the volume control only far enough to hear properly.
Ringing in the ears may indicate that the volume level is too high. Try lowering the volume.
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.
Have your hearing checked by an audiologist on a regular basis. If you experience wax buildup, discontinue use until a
medical professional has examined your ears.
Failure to use, clean, or maintain earphone sleeves and nozzles according to manufacturer’s instructions may increase
the risk of sleeves detaching from the nozzle and becoming lodged in your ear.
Prior to inserting the earphone, always recheck the sleeve to make sure it is firmly attached to the nozzle.
If a sleeve becomes lodged in your ear, seek skilled medical assistance to remove the sleeve. Damage to the ear may be
caused by non-professionals attempting to remove the sleeve.
Do not attempt to modify this product. Doing so could result in personal injury and/or product failure.
CAUTION
Do not immerse in water, such as while taking a bath or washing your face, otherwise sound deterioration or failures may
result.
Do not use while sleeping as accidents may result.
Use a slow twisting motion to remove the earphones. Never pull on the earphone cord.
Stop using the earphones immediately if they are causing great discomfort, irritation, rash, discharge, or any other uncom
fortable reaction.
If you are currently receiving ear treatment, consult your physician before using this device.
Note:
Use only with the included power supply or a Shure-approved equivalent.
WARNING
Battery packs may explode or release toxic materials. Risk of fire or burns. Do not open, crush, modify, disassemble, heat
above 140°F (60°C), or incinerate.
Follow instructions from manufacturer
Do not short circuit; may cause burns or catch fire
Do not charge with products other than those specified in this user guide.
Dispose of battery packs properly. Check with local vendor for proper disposal of used battery packs.
Batteries (battery pack or batteries installed) shall not be exposed to excessive heat such as sunshine, fire or the like
Note:
Battery replacement to be performed only by Shure authorized service personnel.
Please follow your regional recycling scheme for batteries, packaging, and electronic waste.