Origin	China
Model Number	OV-L771
Brand Name	Ovleng
Function	USB
Style	Headband
Usage	Computer

. Contect the USB adapter to the usb port in your computer

2. Insert the attached driver disk. The installation program will be automatic(if your computer is refused to operate disk,please operate the SETUP.EXE document in the disk), then install it as per instruction,when the installation have successfully completed, please reset your system, it plug in and play function and there will not have need install the driver again when you use it next time.

3.3D testing software expediently you to test the voice effect. See picture A,B

4.To enter into my computer. Ysomc USB Audio in sequence, it will show up the picture as C, You can change the headphone- loudhaller model here and adjust the digital volume sound channel from left-to -right, then click Xear3D, then it wukk appear the picture as D, you can adjust and pre-set all over the sound effect, including , pre-set23 types of sound field model, cool fictitious 5.1 track,dynamic circumrotate sound field ,adjust and pre-set audio mixer or others and also save the model,( see details in the attached readme doc of disk)

5. when you want to withdraw the program , please get out of the software from the computer first and then pull the SUB headphone on( see details in the attached instruction)