Safety instructions
CAUTION: Failure to observe these safety instructions may result in personal injury and damage to
property. Read the following safety information carefully before using the headphones.
General safety instructions
• The earbuds are intended for private, non-commercial household use.
• Do not use the earbuds in areas where electronic devices are not permitted.
• Do not try to repair the earbuds. Do not continue to use it if it is damaged.
• Do not store the earbuds in the immediate vicinity of heating, other heat sources or in direct
sunlight (e.g. in a car).
• Keep the earbuds and their accessories safe from children.
• Do not use the earbuds in a damp environment and avoid splashing water.
• Use of the
earbuds
sports equipment or operate machinery while using the earbuds.
• The battery is permanently installed and cannot be removed. Dispose of the earbuds and
charging case as a whole in accordance with legal regulations.
Warning – high volume
• High sound pressure level! There is a risk of hearing damage.
• Always set the connected device used with the earbuds
to half playback volume before switching on the earbuds.
• Always start playback before putting on the earbuds!
• Always keep the volume at a reasonable level. High volumes - even for short periods - can lead
to hearing damage.
• Never use the earbuds without earplugs!
Warning – magnets
• The earbuds generate magnetic fields. Persons with pacemakers should consult a doctor before
using this product to determine whether the function of the pacemaker could be impaired.
• Do not keep any EC or similar cards with magnetic strips near the headphones.
Safety instructions for lithium batteries
• Only use suitable chargers or USB ports for charging.
• Do not use defective chargers or USB ports in and do not try to repair them.
• The input voltage for the product is 5V.
• To charge the product safely and reliably, please only use certified, suitable chargers/adapters.
• Only charge the product at ambient temperatures between 10°C/50°F and 40°C/104°F.
• Recharge regularly (at least every three months) for longer periods of storage.
• Switch the product off immediately after use to conserve the battery.
• Please note that we accept no responsibility for incorrect operation
(e.g. charging voltage higher than 5V).
• In extreme cases, misuse of the lithium battery can lead to explosions, heat development,
fire or smoke development.
• Do not throw the earbuds or charging case into a fire.
User manual TELEFUNKEN SPARK ONE
restricts your perception of ambient noise. Therefore, do not drive vehicles or
ENGLISH
3