Technical Details: Material: Plastic, Metal Grille. Model Name: SAMHWT550OB. Number of Speakers: 5. Total Power: 320 W. Special Feature: 3D Surround Sound; Multi-connection; Powerful Bass; Smart Sound; One Remote Control. Product Dimensions: 33.9D x 3.3W x 2.2H. Item Weight: 15.7 Pounds. Wireless Communication Technology: Bluetooth. Speaker Size: 2.2 Inches.