Features: – Includes (4) 8.0’’ -inch Speakers – In-Wall / In-Ceiling System – Bluetooth for Wireless Music Streaming Ability – 2-Way Stereo Sound – 4-Channel Digital Amplifier – 1/2’’ High Compliance Polymer Tweeter – Quick Connect Spring-Loaded Speaker Terminals – Polypropylene Cone with Rubber Edge – Mounts Flush to Walls or Ceilings – Includes Changeable Round & Square Speaker Grills – Cut-Out Size Template for Easy Installation – Mounts Flush on Walls or Ceilings – Environmentally Friendly ABS Construction – Perfect for Custom Installations & Applications Bluetooth Connectivity: – Includes Bluetooth Wireless Audio Control Receiver – Works with All of Today’s Latest Devices – (Smartphone, Tablet, Laptop, Computer, etc.) – Bluetooth Network Name: ‘Pyle’ – Bluetooth Network Password: ‘0000’ (4 Zeroes) – Bluetooth Version: 4.0 – Wireless Range: 30’+ ft. What’s in the Box: – (4) 8’’ Speakers – (4) Removable Round Speaker Grills – (4) Removable Square Speaker Grills – Speaker Connection Wire – Bluetooth Control Receiver – Power Supply Technical Specs: – MAX Power Output: 250 Watt – Impedance: 8 Ohm – Sensitivity: 89 dB – Frequency Response: 40Hz-20kHz – Power: 100/240V (12V DC Power Supply) – Total Unit Dimensions (Diameter x Depth): 11.2’’ x 3.9’’ – Cutout Diameter: 9.4’’, Cutout Mounting Depth: 3.5’’ – Single Speaker Weight: 5.12 lbs.