Fosmon Digital Audio Converter, Coaxial to Optical Toslink Adapter with 5V USB AC Adapter & Mini USB Cable (Black) [COMPACT & CONVENIENT SIZE] Light weight construction [DIGITAL AUDIO CONVERTER] Coaxial to Optical Digital Audio Converter enables a digital audio signal to be converted from coaxial to optical [DIGITAL AUDIO COMPATIBILITY] Perfect for converting DVD/VCR/Blue-ray players with coaxial outputs to audio receivers and sound bars with optical/Toslink inputs [USB AND AC POWER ADAPTER INCLUDED] Power it with either USB or AC power with the included USB cable and USB AC adapter [LIMITED LIFETIME WARRANTY] Includes a Limited Lifetime Warranty