Feature:1. Application: The builtin spring antenna is suitable for various 433MHz/470MHZ wireless modules and intelligent remote control equipment.2. IPEX Connector: The interface is specially designed as IPEX type, which is not easy to age, and makes the signal more sensitive at the same time.3. Stable Signal: The standing wave ratio of 3DBi builtin antenna is lower than 1.5, and the signal is stable, bringing you more convenience.4. Excellent Performance: RG1.13 wire high density braided shielding layer, oxygenfree core, high conductivity and low loss.5. Professional Production: Have undergone extensive quality and safety testing to ensure long service life and strong durability.Specification:Item Type: 3DBi Builtin AntennaMaterial: Pure Copper + RG1.13 WirePurpose: Signal stabilization and gainFrequency Band: 433-470MHZGain: 3dbiStanding Wave Ratio: <1.5Impedance: 50Polarization Method: Linear PolarizationInterface Form: IPEX InterfacePower: 50WWorking Temperature: -40 to +65Application: For various 433MHz/470MHZ wireless modules and intelligent remote control equipment..Package List:10 x3DBi Builtin Antenna