4. To ensure a long service life, fully charge the batteries before using the headphone for the first
time. Ensure the charging socket located on the right earphone cabinet connects securely with
the charge prongs on the transmitter cradle. According to the capacity of the rechargeable
battery included, the battery charging process will take approximately 5 to 7 hours.
This device must be used with the AC/DC adaptor supplied in the package.
WARNING
• Never attempt to recharge conventional dry cells.
• Batteries (battery pack or batteries installed) shall not be exposed to excessive heat such as
sunshine, fire or the like.
• Never use another type of battery or non-rechargeable batteries to replace the rechargeable
(Ni-MH/AAA) batteries supplied. When the headphones are not in use, switch it OFF to avoid
damaging the batteries.
• Excessive sound pressure from earphones and headphones can cause hearing loss.
• If an apparatus is provided with a replaceable lithium battery, the following applies:
– if the battery is intended to be replaced by the USER, there shall be a warning close to
the battery or in both the instructions for use and the service instructions;
– if the battery is not intended to be replaced by the USER, there shall be a warning close
to the battery or in the service instructions.
This warning shall include the following or similar text:
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
A warning that batteries (battery pack or batteries installed) shall not be exposed to
excessive heat such as sunshine, fire or the like.
TROUBLE SHOOTING
No Sound
- Ensure the AC/DC adaptor is fully inserted into the AC outlet and the power connection input on
the transmitter.
