Elecom M-XGS30DBSK Series User Manual page 11

3) Insert the battery according to the instructions on the battery compartment.
Ensure that the battery is inserted with the positive (+) and negative (-) terminals
oriented correctly.
4) Put the battery cover back on.
2.
Connect to a PC
1) Start up your PC.
Please wait until your PC has started up and can be operated.
2) Insert the receiver unit into the PC's USB-A port.