Equipped with for Bluetooth 5.4 chip using for LE Audio technology, compatible with all kinds of smart phones also support the connection of mobile phones on the market with for LE audio function Premium Audio Codecs,enjoy music with ,AAC,,-LL,-HD,-AD and LC3 audio codec Multi-Mode Functionality,works as a traditional Bluetooth receiver + LE Audio receiver, with Broadcast Audio RX/TX for enhanced audio sharing Multiple Input Options ,supports Bluetooth, USB, AUX, and external MIC input for flexible usage Built-in 300mAh high-capacity polymer batteryensures extended playback time Model Number:Wireless audio adapter Wireless Type:Bluetooth Sound Track:Double Interface:3.5 MM,USB (The product appearance and printed words depending on the batch, but this does not affect use) Color: As Shown Material: ABS Package Contents: 1 x Wireless audio adapter 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.