ITEM NAME:750mm 2.46ft UV Dual Band Car Mobile Radio SG-M507 High Gain Antenna Product Description Description: Features: Model: SG-M507 The use frequency: 144/430Mhz the receiver / transmitter Gain: 2.15dbi (144Mhz) 5.5dbi (430Mhz) Resistance into power: 70W (watts) Band: Dual Band 144/430MHz Impedance: 50 ohms V.S.W.R: Less than 1.5 Interface Type: M-P Polarization: Vertical Radiation: Omni Length: Approx. 75cm / 29.5in Weight: Approx. 155g / 5.5oz Included: 1 x Dual Band Car Mobile Radio SG-M507 High Gain Antenna.Band: Dual Band 144/430MHz. Resistance into power: 70W (watts). If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item. 12 months Warranty.