Specifications:

Frequency: 144 / 430 (2m / 70cm)
Gain : 2.15 dbi (145MHz)
           3.4 dbi  (430MHz)
Max power: 20W
Colour: Black
Impedance: 50 OHM
Length: 40cm 
Connector: SMA-Female
Weight: 8g 

Compatible with Two-way handheld radio:
Kenwood handheld Radio : TK-240, TK-250, TK-255, TK-260, TK-260G, TK-270, TK-270G, TK-272G, TK-278, TK-278G, TK-340, TK-349, TK-350, TK-353, TK-360, TK-360G, TK-370, TK-370G, TK-373G, TK-378, TK-378G, TK-430, TK-431, TK-715, TK-2100, TK-2102, TK-2107, TK-2118, TK-2160, TK-3100, TK-3101, TK-3102, TK-3107, TK-3118, TK-3160

LINTON handheld Radio : LT-2288, LT-3288, LT-6288, LT-5288, LT-3188, LT-2188, LT-3260, LT-2268, LT-3268, LT6188, LT3288.

PUXING handheld Radio: PX-777, PX-777 PLUS, PX-666, PX-3288, PX-888, PX-888K

WEIERWEI handheld Radio: VEV-3288S,VEV-6288,VEV-3288, V-1000

QUANSHENG handheld Radio: TG-K4AT, TG-2AT, TG-45AT, TG-42AT, TG-22AT, TG-25AT, TG-UV

WOUXUN handheld Radio: KG-UVD1P, KG-659, KG-669 , KG-669 PLUS, KG-679, KG-679 Plus, KG-689, KG-689 PLUS, KG-699E

HYT handheld Radio: TC-600, TC-268, TC-268S, TC-270, TC-270S, TC-368, TC-368S, TC-370, TC-370S, etc

KST Radio: KST V6

Wanhua Radio

BAOFENG Radio: UV-5R, UV-3R Plus