Features 1、High Performance: Independent channel transmission is faster, co channel interference is reduced, signal gain is enhanced, and transmission performance is improved. 2、Wide Range Of Applications: Suitable for automobile 4S shops, car dealers, bus stop announcers, driving samples, rental companies and individual DVD navigation, car maintenance and other equipment. 3、Simple And Easy To Use: No installation required, antenna can be used after connecting with the device, and it is simple and easy to use. 4、ABS Material: Made of high quality ABS material, durable, waterproof and sunscreen, and can easily cope with various rainwater and complex environmental occasion. 5、High Efficiency: BD+GPS dual mode, GPS frequency up to 1555MHZ, BD frequency up to 1580MHZ, wide coverage. Specification Item Type: BD+GPS Antenna Material: ABS+Copper Model: GPS-004 Application: GPS transmission and gain Antenna Gain: 28DBI GPS: 1555MHZ BD: 1580MHZ Impedance: 50Ω Maximum Power: 50W Standing Wave Ratio: ≤1.5 Polarization: Right handed circular polarization Antenna Interface: SMA male inner pin Application Areas: Car 4S shops, car dealers, bus stop announcers, driving samples, rental companies and individuals, DVD navigation, car maintenance equipment Package List 1 x Antenna