3.5mm interface FM radio antenna, replaces the traditional headphone cable as an antenna. Convenient, practical, and good radio effect! Applicable to multiple and models of plug-in speakers/mobile phones/network cards with FM radio function Etc... Standard 3.5 audio jack FM antenna, suitable for plug-in speakers with FM radio function such as for Shengbao, for See You, for Snow Angel, for Langqin, for , etc., some mobile phones (for phones are not supported) or some FM radios, as well as other audio digital products suitable for this antenna. Plug and play, making your device's signal reception ability stronger. Note:1. Most mobile phones and speakers recognize this product as a headset. Once inserted, the sound be output to the headset by default. At this time, you need to switch the mobile phone or card speaker to external speaker. Otherwise, you not be to hear the sound. 2. This product can be correctly recognized by most mobile phones such as for , for ,for , for , for , for , for and card speakers. Only a very small number, such as the first generation of for , cannot correctly recognize this antenna. The problem that the mobile phone cannot correctly recognize it is a design defect of the mobile phone software and has to do with the quality of the antenna. Frequency range: 1880-1920/1990-2170MHZ VSWR: 1.5 Gain: 2dBi Polarization Type: Vertical Rated Power: 50W Input Impedance: 50 Ohms nominal Connector Type: 3.5mm Color: black Material: plastic Package Contents: 1 x Antenna Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.