QUIETON 4 Quick Start Manual page 9

NO MODIFICATIONS
Modifications to this device shall not be made without the written consent of QuietOn. Unauthorized
modifications may void the warranty.
TEMPERATURE RANGES
Operating temperature range for the earpiece: -4°F to 122°F (-20°C to 50°C). Storage temperature
range (complete kit): -4°F to 122°F (-20°C to 50°C). Charging temperature range: 32°F to 113°F
(0°C to 45°C).
WARNINGS
Note that the device is not a hearing protector and not designed for situations that require hearing
protection. The earbuds do not remove noise completely, so even when wearing the earbuds be careful
to avoid loud noises that could damage your hearing. Using or storing the product outside of the rec-
ommended temperature ranges may damage the product, reduce the battery's capacity, or reduce the
battery's lifespan. The product may not work temporarily if used outside the optimal temperature range
(either too hot or too cold). Storing the product in very hot areas such as inside a car in the summertime
may result in damage to the device or cause the battery to explode. If there is any drainage from your
ear or you have an ear infection, do not use the device before having consulted your physician. Failure
to do so may result in hearing loss or injury. Do not use device with wet ears to avoid device to break
or foam tips to deteriorate. The sound attenuation caused by the device can create a risk in situations
where it is important to hear environmental sounds and warning alarms, for example, road traffic or
warning sirens at a construction site. Note that alarm sounds will sound different when wearing the
earplugs. Local laws may restrict the use of QuietOn in traffic. Always obey local laws. Do not use the
earbuds if they produce excessively loud sound since the device may be broken and should be returned
to the seller. The device contains small parts that may present a choking hazard to small children and
animals. The device is not suitable for small children. The device contains magnets, which may affect
magnetic stripe cards, pacemakers or similar devices. Do not expose the earbuds to strong magnetic
fields. It can permanently degrade the active noise cancelling performance. The charging case and
earbuds are not water proof or IP rated. Do not wet the unit. This may create a short circuit, which can
cause a risk of fire and may damage the device. Do not expose the device to high temperatures. Do not
use the device in case of mechanical breakage of the device. This may create a short circuit, which can
cause a risk of fire and damage the device. Use and store the device carefully. Use only an approved
USB charger or computer to charge: connected via USB type-A to USB-C cable or USB-C to USB-C
cable. The charger should be compatible with the applicable safety standards: CE or UL / CSA / IEC / EN
62368. Do not leave the device on charge for long periods of time. Use a 5-volt charging adapter with
a current capacity of 0.2 to 3 amperes for charging. The charging power is approximately 0.6 watts,
regardless of the charger's charging current capacity.