ITEM NAME:NR-770S Dual Band VHF/UHF 100W Car Mobile Ham Radio Antenna for TYT 17.5in #gib Product Description Description: Features: The NR-770S is a short compact pre-tuned mobile antenna for 2m/70cm amateur bands. Open spring centre loading coil. Frequency range: 144/430MHz. Gain: 2.15/3.0db. Max power: 100watts. Length: approx. 445mm. Diameter of Chassis: 18 ±0.2 mm Radome Material: Stainless steel Connector: M-type(PL259 UHF) Included: 1 x NR-770S Antenna 1 x Bolt driver.Connector: M-type(PL259 UHF). 1 x NR-770S Antenna. 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.