New Technology, No need signal cable, USB as power supply.
Main Features:
Designed for PC specially.
High efficiency and save energ, no need for power and convenient for taking.
High quality inner magnet loudhailer, insuer to play with high fidelity.
Just inset the USB to the PC, it will play.
Specifications:
* Loudhailer mode: Dynamic Magnet Shielded
* Loudhailer diameter: 32mm
* Loudhailer numbers: 2pcs
* Impedance: 8 52905
* Frequency response: 180HZ-18KHZ
* Output power: 2W+2W
* Power supply: USB
* Dimensions: 42*56*32 MMMM
* Weigt: 176g