1、Wirelessly streams audio from your non‑Bluetooth TV, home stereo system, or CD player to your Bluetooth headphones or speakers. 2、This portable, lightweight wireless audio transmitter and receiver is an ideal wireless audio solution for a wide range of situations and uses. 3、Wirelessly streams audio from your Bluetooth‑enabled phone, tablet, or computer to your wired stereo, speakers, or headphones. 4、Switch between transmitter and receiver modes with the simple flick of a switch. Effortlessly connect using advanced Bluetooth technology and 3.5mm audio cable (included). 5、This Receiver transmitter adapter can widely be used on your car, computer, laptop, home stereo system, headphone, smartphone, Mp3 player, CD player, etc. Item Type: USB Adapter material: ABS Color: Black Bluetooth Version: 5.0 Transmission Signal Distance: Approx. 15m/ 49ft Function: Bluetooth audio receiving and transmitting, driver free for PC + hands-free call Input Interface: 3.5mm AUX Input Voltage: DC 5V Driver Free, plug and play Power Supply: No internal battery, external power supply required 1 x Adapter 1 x Audio Cable 1 x Manual