Shure QLX-D Series User Manual page 18

Secures batteries when powering transmitter with AA batteries instead of Shure SB900 battery.
⑧ Bodypack Antenna
For RF signal transmission.
⑨ Handheld Integrated Antenna
For RF signal transmission.
⑩ Microphone Cartridge
See Optional Accessories for a list of compatible cartridges.
⑪ TA4M Input Jack
Connects to a 4-Pin Mini Connector (TA4F) microphone or instrument cable.
⑫ Battery Contact Cover
Align the cover as shown to prevent reflections from the battery contacts during broadcasts or performances.
Shure Incorporated
18/60