RH-205 144MHz (2m) telescopic whip antenna .
Specifications:
Type: 5/8wave(full length),1/4wave(retracted),telescopic whip antenna
Band(s): 144MHz ( 2m )
Max. power rating: 10W
Impedance: 50ohms
Length: 134cm(full length), 23cm(retracted) 10 stages
Weight: 90g
Connector: SMA-M 
Package contents: 1 x RH-205 antenna