1. Fashionable Design 2. Metal Case 3.multifuctional device 4.ATC testing ,CE certificate,ISO9001:2008 VCOM Professional Mini Speaker Product Feature: USB Mini stereo Powered HI-Fl amplifier Notebooks/pc/mac/mp4/mp3/PDA Rms power: 2x2W Input voltage:USB5-6v Frequency Range:90-20KHz Jack :3.5 mm stereo VCOM brand:History:Established in 1994. Group:3 Sales Company in Guangzhou, 2 Factories in ...