(USB Power Supply) USB has power function. During use, power must be supplied through USB port (such as power adapter, PC, car charger and other USB port). As long as the Bluetooth transmitter receiver connected with power, you will never worry that it will run out of power when listening to music. | (Bluetooth5.0 + EDR) Wireless connection to various Bluetooth devices is achieved by plugging the Bluetooth adapter into non-Buetooth devices. It stably connects to TV, Stereos, PC, MP3, Car, Speakers, Headphones, Smartphone, Tablets and achieve a range of up to 50ft (15m) in open air and up to 33ft(10m) indoors. | (Upgraded 3 in 1 Transmitter Receiver)The USB Bluetooth 5.0 Audio Transmitter Receiver can transmit audio from your non-Bluetooth audio sources(TV, PC, MP3, CD player or book Reader, etc.) to your Bluetooth headphones, speaker. And also can make your non-Bluetooth headphones, speaker receive the audio from Bluetooth Audio sources(cell phone, tablet, etc.) Easily switch between transmitter and receiver mode with one button! | (No Driver Required) When use on PC, power supply and audio transmission are achieved via the USB port, no 3.5mm audio cable / driver/software is required. x Just can transmit audio, not files. | (Colored breathing lights) With cool color breathing lights, you can use different atmosphere when using the product. Whether it is used at home or in the car, it can be easily found!.Note: This device is not available for answering calls. | Connector type: USB 2.0