Targus TSB116US SonicPak (Silver) Removable high quality speaker has two 25mm, 4 ohm exciters and a 1.4W amplifier Features front workstation with key clip, pen loops, accessory pouches Exterior Dimensions - 13.98 x 7.48 x 18.11 Interior Dimensions - 14.33 x 11.81 x 1.69 Weight - 2.95 pounds