Pyle KTHSP390SV 4-Room In-Wall / In-Ceiling Speaker System, 4 x 150W 5.25" Stereo Speakers w/ 300W Digital Stereo Receiver USB/SD/AUX Input, Remote w/ 4 Channel High Power Stereo Speaker Selector W/ Built-in Volume Control Qty 8 In-Wall / In-Ceiling 2-Way Speakers -150 Watt Rated Peak Power -  High Compliance Polymer Tweeter - Polypropylene Cone with Rubber Edge - Perfect for Custom Installations & Applications Frequency Response: 80Hz-20kHz - Impedance: 8 Ohms - Sensitivity: 88 dB - Mounts Flush on Walls or Ceilings - Built-in Electronic Crossover Network - Environmentally Friendly ABS Construction Includes Changeable Round & Square Stain Resistant Grills - Cut-Out Template for Easy Installation - Unit Dimensions (L x H): 8.3" x 3.0" - Cutout Diameter: 6.8" - Mounting Depth: 3.0 300W Receiver - AM/FM radio with digital display screen - Auto scan, radio station PRE/NEXT control - 50 radio station pre-set memory - Volume/balance/treble/bass gain control for main channel 2 microphone inputs - Two RCA input source - USB Input - Also Included 4 Channel Speaker Selector W/volume Control