... 2.1 audio Speaker D0380 1. 3D sound technology with 2.0 channel 2. Desktop HiFi USB speaker 3. Clear, rich, wide 40mm USB 2.1 ... audio Speaker D0380 Low frequency sound have power, feel warmly Audio signal cable connect ... player, cellphone, MP3 player etc audio outputUSB cable connect to PC, notebook, DVD player etc. ... (USB 5 V power supply)1. 3D sound technology with 2.0 channel2. Output power: ...