Radarcan R-101 User Manual page 11

Only the batteries need to be replaced when they run out.
How long does the battery last?
The battery is estimated to last for 8 months when used
for 4 hours a day. If used constantly for 24 hours a day, it is
estimated to last for 40 days.
In what other places can the PORTABLE MOSQUITO
REPELLER be placed?
The PORTABLE MOSQUITO REPELLER can be worn like a
watch on the wrist or the ankle, but it is also equipped with a
clip which, when removed from the band, makes it possible
to fasten it to a shirt or pants pocket, polo shirt, backpack,
baby carriage or stroller. It is important not to cover up the
front of the element to let the sound come out.
Can I use more than one PORTABLE MOSQUITO REPELLER
at a time?
Yes. The effect of the PORTABLE MOSQUITO REPELLER will
be strengthened to help reach the maximum protection
possible.