Comet Original BNC-24 144/440 MHz, Dual-Band Superflex Handheld Antenna, BNC Connector Flexible and lightweight, made from the same material as unbreakable eyeglass frames Length: 17 Inch Max Power: 20 Watts; Connector : BNC Gain & Wavelength: 2M: 2.15dBi 1/4 wave & 70cm: 3.5dBi 5/8 wave