Overview: This digital to analog converter enables you to convert digital audio signal from optical and coaxial port to analog audio signal from RCA and 3.5mm jack. And it equips with volume control knob to quickly adjust volume. Feature: It can convert digital audio signal to analog audio signal. Supports 3.5mm optical, coaxial, BT, and U disk input. Supports RCA left and right channels, and 3.5mm AUX output. BT 5.0 high integrated chip ensures stable signal transmission. Adjust the volume of outputted audio from the connected device via the knob. Compatible with network player, HDTV, DVD player, game console, etc. Metal shell, wear resistant and durable, good heat dissipation performance. No drivers required, easy to use, plug and play. Specification: BT Version: 5.0 Working voltage: DC 5V 2A Shell Material: Metal Color: Black Item Size: 8.2*7.0*2.7cm/3.22*2.75*1.06in Package Size: 21*15*5.5cm/8.26*5.90*2.16in Package Weight: 246g/8.67oz Package List: 1 * Converter 1 * USB Cable 1 * Antenna