Features: This product is made of high quality metal material, strong and durable. 433MHZ wireless module small suction cup antenna for various modules, height is about 31cm. 10dBi high gain, greatly improving signal reception stability. Pure copper oscillator signal is stronger and more stable. The base is magnetically mounted, not easy to fall off, and can be adsorbed on various devices. Specifications:Material: MetalSize: Approx. 32*4*4cm/12.60*1.57*1.57inchModel: 433-10DBI Sucker AntennaWorking Frequency: 433MHzImpedance: 50ohmAntenna gain: 10dBiAntenna Height: Approx. 31cm/12.20inchFeeder length: Approx. 3m/9.84ftSWR: ≤1.8Polarization: HorizontalInterface Model: SMA Internal thread internal pinAppearance: Barrier spring suction cup with 174 pure copper cableCompatible Model: 433 Wireless ModulePackage list:1 x Antenna