Key Features of Sonilex Sl-400dlfm Wired Home Audio Speaker compatible with PC external audio devices with 3.5 mm stereo output jack Rechargeable battery,Specifications of Sonilex Sl-400dlfm Wired Home Audio Speaker (blue, 2.1 Channel) In The Box Sales Package 1 speakers General Brand Sonilex Wired/Wireless Wired Compatible Devices Mobile, Computer Type Home Audio Speaker Key Features compatible with PC, external audio devices with 3.5 mm stereo output jack, Rechargeable battery Configuration 2.1 Channel Subwoofer 1 Model ID Sl-400dlfm Color blue Power Input Power 220 V AC, 50H z Battery Rechargeable Li-polymer Power Output 25w(subwoofer) Power Source Battery, AC Adapter Dimensions Cord Length 1 m Audio Features Impedance 4 Ohms (Subwoofer), 6 Ohms (Satellite) Other Audio Features 3D sound Total Power Output RMS (W) 25w(subwoofer) Frequency Response 35-220Hz Connectivity Memory Card Slot No USB Ports 1 USB Ports