Kenwood TS-850S Instruction Manual page 9

B. Front Panel
Microphone
(1) Headphones
Any low-impedance (4-16 ohms) headphone may be
used with the transceiver. Connect the headphones
to the front panel PHONES jack. (diameter 6.0 mm).
The optional HS-5 or HS-6 headphones are best
suited for use with the transceiver. Stereo type
headphones can also be used.
(2) Microphones
Any microphone with an impedance to 6000 may be
used with this transceiver. The KENWOOD
microphones MC-43S (handheld), MC-60A, MC-80,
MC-85 (table-top type) are recom-mended.