... 'HQDelivery Detail:30 daysSpecifications1, 5.1CH Home Theater System 2, USB 2.0 slot 3, RMS:105W --160W 4, PMPO:1 ... (wooden) and 1 subwoofer(wooden)4, Built-in 5.1ch amplifier 5, Output Power: RMS105W (15W*5+30W), (Optional )Technical parameter ... rate :1% 5.1 ch home theater speaker system with usb,sd card reader,FM