ITEM NAME:2 in 1 Wireless Bluetooth 3.5mm Audio Transmitter Dongle Adapter for TV SN9F Product Description Description: Descriptions: 1. Mode switching When audio cable is connected, power it on and it enters USB Bluetooth transmitter mode; When audio cable is connected, power it on and it enters USB Bluetooth transmitter mode; 2. Common functions A. When it is.When audio cable is connected, power it on and it enters USB Bluetooth transmitter mode;. A: support sound through the 3.5 audio port output, and then transferred to the Bluetooth headset, Bluetooth speakers, Bluetooth receiver;.