Sony RM-X7BT Operating Instructions - Page 7

Installation Installing the lithium battery 1 Open the cover on the bottom of remote commander with a coin, etc. 2 Install the supplied lithium battery  to the remote commander.  + side up To replace the lithium battery Under normal conditions, the battery will last approximately 1 year. (The service life may be shorter, depending on the conditions of use.) When the battery becomes weak, the range of the remote commander becomes shorter. CAUTION Danger of explosion if battery is incorrectly replaced. Replaced only with the same or equivalent type. Notes on the lithium battery  Keep the lithium battery out of the reach of children. Should the battery be swallowed, immediately consult a doctor.  Wipe the battery with a dry cloth to ensure a good contact.  Be sure to observe the correct polarity when installing the battery.  Do not hold the battery with metallic tweezers, otherwise a short-circuit may occur. Installing the remote commander Before installing  Make sure that the angle of slant at the holder  or the direction of remote commander is suitable for the installation site. There are 4 grooves on the remote commander and 2 hooks on the holder , and depending on the situation, you can install the remote commander four different ways. 7GB