Logitech UE 2.1 Speaker System - Wireless Speaker(s) Color: Silver Speaker Diameter: Two 0.5 Tweeters Two 3 Woofers Four 2 5/8 Passive Radiators Battery Type: Rechargeable battery Battery Life: Up to 6 hours Dimensions: 15.2 x 3.1 x 6.5 Weight: 4.37lbs Parts: 2 Year