1. QCC3086 chip,support ,,-LL,-HD,-AD and LC3 audio codec,bring Hifi sound (Note:not support LDAC) 2. Bluetooth 5.4 audio transmitter,compatible with most Bluetooth devices,you can insert the adapter to PC,TV or your for /5,then Bluetooth connect the headphones or speaker to listen audio 3. Auracast broadcast audio,Support connect multiple auracast-enabled Bluetooth devices at the same time. 4. Type-c audio input, ompatible with transmitter devices with Type-c interface,like the TV,Notebook,Computer,for , for 5. Support Mic when use the Bluetooth transmitter or LE Audio mode,not support mic under Auracast audio This is the newest mini Bluetooth 5.4 audio transmitter,built-in QCC3086 chip,support LE audio LC3 and Auracast broadcast audio,it mainly helps those devices that don't have Bluetooth capability to also enable Bluetooth playback.Broadcast mode allows simultaneous connection of multiple Auracast-enabled Bluetooth devices. Colour:Black Material:ABS Package Contents: 1 * Audio LC3 BT 5.4 Audio Transmitter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.