The RM-210 is key extension unit for increasing the number of function keys of TOA's remote microphones by 10.
- 10 additional keys for remote microphones
- Up to 4 RM-210 key extension units can be used with each RM-200M, RM-200M-AL or RM-200SA remote microphone, or 5 with the RM-200SF (in SX-2000 system)
