USB 2.0 digital Laptoplautsprecher

USB 2.0 digital mini speaker system Feature: 1.Real USB Mini speaker 2.Full-digital processing ,no signal lose by USB transmission 3.only one control cable with build in sound card driver and amplifer circuit 4.use full band HIFI speaker 5.high efficiency, high performance 6.Simple & fashion design , easy to assemble and disassemble 7.small in size, match laptop computer perfectly Description 1. USB Powered and signal directly.2.only one control cable with sound card driver and amplifer circuit connect to computer3.plug and play:1)connect PC to control cable by USB.2)connect the speaker unit to control cable.3)play and enjoy the wonderful music4.volume can be adjusted by button "+"and"-"on control cable.easy to operate5.removable design,easy to assemble and disassemble.remove the speaker unit from the control cable,manage them seperately,put them into portable bag,it is convenient for travel.6.this speaker can also be compatable with mp3/mp4 player.1)connect the input audio port of mp3/mp4 to the audio port of contronl cable by standard 3.5 inch earphone cable.2)connect the control cable to PC by USB,the USB control cable can also be connected to mobile phone charger(with USB port) for power. specification: power:2x2w Frequency: 20hz to 20khz Sensitivity:80Db Signal to noise:90dB Distortion: less than 0.5% weight:478gmaterial:ceramiccolor:green/blue after sale service:0.3% spare parts