Includes: (4) YAMAHA NSIC600WH 2-Way 110-Watts RMSSpeakers Speaker: 9.12 Inch Width, 9.12 Inch Height, Depth: 4.25 Frequency Response: 65Hz - 28000Hz, Impedance: 8 ohms, Sensitivity: 90 dB Tweeter Size: 1 Inch, Woofer Size: 6.5 Inches Aimable Tweeters for Directed High-Frequency Sound Easy Install Easy ListeningThe NS-IC600 In-Ceiling Speaker system is easy to install and includes magnetic grilles and high sound quality designed to meet various installation requirements.High Sound QualityMoisture resistant 6.5" blue polypropylene mica cone woofer for high performance mid-low sound reproduction. 1" fluid-cooled soft-dome swivel tweeter delivers pure high frequency with precise sound positioning.Unique DesignGrain-finished acoustic baffle with spiral pattern for natural sound dispersion. Slim profile design for flush in-ceiling or in-wall mounting. Sealed back cover to protect speaker and crossover from dust and moisture.Quick and Easy InstallationPaintable grille with magnets for quick and easy installation. Large mounting clamp with non-slip tread for sure grip. What's in the Box(2) NS-IC600 In-Ceiling Speakers - Pair(4) GrillesManualSpecificationsRecommended usage: In-ceiling front/surround speakersType: Two-way coaxialWoofers: 6.5" polypropylene mica coneTweeters: 1" fluid-cooled soft domeSwivel tweeter midrange driver: TweetersPaintable grill with protective coverFrequency response: 65Hz - 28kHzSensitivity: 90dB (2.83V 1m)Input power (Maximum/Nominal): 110W/40WImpedance: 8 ohmsDimensions (W x H x D): 9 1/8" x 4 1/2"Mounting depth: 4 1/4"Weight: 3.3 lbs. (Each)