Brand: Kisonli Model: TM-6000U Type: 2.1 USB Speaker Color: Black Channels: 3 (2.1) Output Power: 5W + 3W × 2 Sensitivity: 500mV S/N Ratio: 65dB Isolated Rate: 3" + 2" × 2 Power: USB 5V Main Speaker Dimensions: 15 × 20.3 × 22 cm Small Speaker Dimensions: 9.4 × 7.5 × 13.3 cm Functions: TF Card Slot, USB Disk Slot, FM, LCD Screen and Clock Display Special Features: Portable and Bluetooth Wireless Use: Computer, Home Theatre, Karaoke Player, Mobile Phone, Portable Audio Player and Stage