The TM-6000U model Black in color 5W+3Wx2 is the output. 500 mV is the sensitivity. 65dB is the S/N ratio. Rate of isolation: 3''+2''x2 USB 5V power Channels: 3 (2.1) Dimensions: Speaker main: 15*20.3*22 cm Speaker size: 9.4*7.5*13.3 cm Functions include an LCD screen, clock display, FM, USB disk slot, and TF card slot. Unique feature: BT, portable Wireless Utilization: Computer, Home Theater, Mobile Phone, Portable Music Player, Karaoke Player, Stage