we have 11 years history,with high quality .technology leadership,customer first ,excellent service,we have established business relationship in more than 50 countries and regions,inclduing east europe,south america,south-east asia,south africa,australia,etc,besides marketing under the brand of KINMA ,we also do OEM and ODM for some international famous brands. Pls attention : we always provide the best version with you.also canmanufacture anyversions according to your request.we have strong after -sale service center.any questions, just touch us freely, our every servicer are all professional and honest.hope we can be long time partner karaoke amplifier Separate 5.1 Channel Amplifier Aluminium Alloy panel VFD display 2 microphone input Microphone bass & treble control Echo with delay and repeat Master volume bass & treble control With USB jack, support WMA,MP3 etc. AM/FM PLL tuner with 30-station memory With HDMI(1080P)/VCD/MP3/AC-3 input with optical/coaxial input and SW-out output Full function remote control Power output: Front channel 80W×2 Center/surround channel 15W×3 Packing Size:495(L)×455(W)×230(H)mm Loading quantity : 20'(28m3):540sets,40'(58m3):1115sets, 40'HQ(68m3):1312sets