|
Description
|
M-3
|
M-4
|
BA-10
|
|
Type
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Telephone receiver type
|
|
Feelers
|
4 rods joint
|
8 telescopic
|
10 telescopic
|
|
Length（mm）
|
300～1080
|
200～770
|
170～1150
|
|
Main materials
|
Metal made
|
|
Measuremet (mm)
|
φ51×26
|
φ51×26
|
－
|
|
Weight（g）
|
500
|
90
|
60
|
|
Other functions
|
－
|
－
|
－
|
|
Accessories
|
Hard case
Extention rod
|
－
|
－
|
|