DescriptionThe item is a Mobile Antenna, which adopts strong signal for radio FM/AM,replacing the traditional cellphone line. It applicable to multiple brands ofwith speaker and phone.With portable design and easy to operate, therefore, it is really a wonderfulFM external transceiver specially suitable for outdoor use.Features- Color: Black. - Material: ABS. - Size: Approx. 13.7 x 5.6 cm. - Frequency:1880-1920/1990-2170MHZ. - VSWR: <=1.5. - Gain: 6dBi. - Polarization Type: Vertical. - Rated Power: 50W. - Input Impedance: 50 Ohms nominal. - Connector Type: 3.5mm Male. - Rated Power50W. - Scope of application: FM radio FM speakers - Easy to install, the digital/analogue signal and strength signal quality. - After you plug into this Antenna, it helps increase cell phone reception in hallways, buildings, tunnels, remote areas. - 3.5mm FM radio antenna interface to replace the traditional headphone cable when the antenna - Designed for optimum AM/FM reception COVER COVERSing all broadcast radio.