AL-800 Expanding BNC Antenna - High-Gain Dual-Band Telescoping Antenna for Enhanced Long-Range Communication

Telescoping Antenna collapses for convenience and extends for an incredible 3.2DB gain. Has a BNc connection to the radio so you will need a converter for this to work on your radio. This kit comes with a small antenna for when you don't need the longer range. 

Telescoping 2M/440 High Gain HT Antenna... 3.2 dB gain 2M / 5.6 dB gain 440 MHz. 50 Ohm impedance and BNC connector.