StarTech.com Bluetooth Audio Receiver with NFC - 3.5mm Jack/RCA/SPDIF (Toslink) - BT 5.0 - HiFi Wolfson DAC - Bluetooth Stereo Receiver for Speakers/PC/TV - Wireless Bluetooth Aux Adapter. Host interface: 3.5 mm + TOSLINK, Transmission distance: 20 m, Operating temperature (T-T): 0 - 40 °C. Power source: USB, AC input voltage: 100 - 240 V, Output current: 1 A. Width: 84.5 mm, Depth: 77 mm, Height: 26.5 mm. Cables included: Audio (3.5mm), RCA. Master (outer) case width: 275 mm, Master (outer) case length: 425 mm, Master (outer) case height: 275 mm