Speco's 5 x 8 inch white ABS PA speaker is completely weatherproof. It features stainless steel hardware and an adjustable ABS plastic base that pivots 90 degrees. It offers a frequency response of 200 to 15,000 Hz with a 15 watt nom/30 watt maximum power rating. It features a 105 dB sensitivity and an 8 ohm impedance. Technical Specifications Dimensions 5" (H) x 8" (W) x 9" (L) Frequency Response 200-15,000 Hz. Impedance 8 Ohm Material White ABS Plastic Max Power 30 Watts Mounting Bracket White ABS Plastic Base with Stainless Steel Mounting Hardware RMS Power 15 Watts Sensitivity @ 1W/1M 105 dB

If You're Going to use this for Your CB Radio, You'll Need This  SPW10P