Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Harvest 222-225 MHz Mobile Antenna with Mag Mount
Product description: This 220 MHz antenna come with the magnet mount, nice quality antenna with 2.6 dbi gain on 222-225 MHz, be able to handle 300 watts perfect for 220 MHz ham band mobile radio.
Product feature: Frequency: 222 - 225 MHz, impedance: 50 ohm, Max power: 300 watts, Gain: 2.6 dbi, Length: 22.5 inch
Product brand: Harvest
Target attributes: Directivity
Answer: attribute: directivity
value: None
source: None