1,APPLICABLE: For Cobra HH50WXST HH50 MRHH350FLT C75WXST handheld CB radio. For BC75XLT PRO401HH BC125AT portable CB radio. For 75 822 75 785 MHS75 portable CB radio and handheld portable CB radio up to 20W. 2,FREQUENCY: This 27MHz radio antennae can realize clear and stable radio communicating, ensuring good communicating quality and reliability. 3,BNC CONNECTOR: It has a BNC connector for quick installation and connection, stable and reliable, not easy to loosen, suitable for different equipment. 4,GAIN AND INPUT POWER: With 1.8dbi gain, which can enhance the signal receiving and transmitting effect. Maximum power input wattage up to 20W (less than 20W for handheld portable CB radios). 5,TELESCOPIC: The antennae length can be freely telescoped from 9.1 to 51.2in. Different length antennas have different effects, users can choose the right length according to their needs. Item Type: Radio Antennae Material: Metal Frequency: 27MHz Connector: BNC Gain: 1.8dbi VSWR: <1.5 Maximum Power Input: 20W (Less Than 20W For Handheld Portable CB Radio) Length Approx: 23-130cm or 9.1-51.2in Color: Silver Applicable: For Cobra HH50WXST HH50 MRHH350FLT C75WXST Handheld CB Radio. For BC75XLT PRO401HH BC125AT Portable CB Radio. For 75 822 75 785 MHS75 Portable CB Radio And Handheld Portable CB Radio Up To 20W 1 x Radio Antennae Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.