Model: R501BT Class D Amplifier with Digital Signal Processing (DSP) Technology Power Output: RMS 11W X 5+ 38W Multi Functional Wireless Remote Control SD Card & USB Flash Drive Subwoofer: 272mm x 414mm x 288mm (W x H x D) Satellites: FR/FL/SR/SF: 112mm x 172mm x 118mm (WxHxD) Centre: 264mm x 108mm x 116mm (W x H x D) Weight: 13 Kg 700gm Bluetooth Version : v4.0 Input Connector: 5.1, Bluetooth, PC, Aux, SD Card, USB Warranty: 1 Year