Welcome to our store!</br> 1、Fit for Garmin GPS Astro 430 320 900 220 /Alpha 50 100 devices, meet your different needs. 2、The antenna can effectively increase the signal range you got, the operating frequency is 136‑174 MHz. 3、Adopt high quality rubber material, soft and durable, provide longer service life. 4、Light in weight, with handheld design, will not bring burden to you, more convenient to use. 5、Easy to install, can be screwed directly by your hands, effectively save your time. <p class="wang-edit-text">Item Type: High Gain AntennaMaterial: Rubber Size: Length: Approx. 38cm/ 15.0in Weight: Approx. 57g/2.0oz Color: Black <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style>Frequency: 136-174MHz Instruction: Install it on the walky talky Fitment: for&nbsp;Garmin&nbsp;GPS&nbsp;Astro&nbsp;430&nbsp;320&nbsp;900&nbsp;220&nbsp;/Alpha&nbsp;50&nbsp;100 1 x Soft Rubber Antenna (Customer Satisfaction) - is our priority. If you notice any problems with the products after receiving the goods, such as damaged goods or incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory after-sale service.</br>