Moneual RYDIS MR7700 User Manual page 18

07. Insert batteries into the remote controller and the indicator.
Insert two batteries, checking for +, - nodes while loading.
The indicator batteries (D"TYPE 2EA) are not included and should be purchased separately.
08. Install the indicator in the desired position.
The product is fully capable of cleaning, functions even without an indicator installed.
For detailed installation methods, see page 37.
The indicator can be used in connection with an additional adaptor (5V).
(Battery power will not be consumed while connected to the adaptor.)
※ Adapter specification: 5V + 1A (for separate purchase)
18 RYDIS MR7700 User Manual