1.Qualcomm Bluetooth 5.2 Stable and Fast Connect. USB Plug and Play Need Not Drive2.Support Full Format Enjou HD Sound. Support Connect Two Devices At the Same Time3.Support Voice Calling(Only One Devices Will Work While You Connected Two Devices)4. 3.5MM AUX/Coaxial/Optical Fiber Connect5.Compatible With Most of TV.Support 24 Bit 96KHZProduct Details:1.Product Name: T9 Transmitter2.Bluetooth Version:Qualcomm Bluetooth 5.23.Bluetooth protocol: A2DP AVRCP HFP 4.Frequency response range: 2.402GHZ-2.480GHZ5.Frequency Response: //APTXLL/APTXHD/ ADAPTIVE6.Lowest latency: -LL Mode 40ms7.Support call: only one receiving device is valid in call mode8.Transmission distance: About 10m9.Number of connected devices: 210.Signal-to-noise ratio: 90DB11.Input : USB driver-free/optical/coaxial/AUX12.Support system: Win-All Linux/ Computer/-5/AndroidMaterial: plasticcolour: blackPackage Contents:1 x TransmitterOnly 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.