Features: 100 Long Range transmission:Effective use range 10~100 .(Up to 100m in open environment) Support Bluetooth audio and data dual transmission:Cost-effective, only one adapter can meet your dual needs. Using Bluetooth 5.0 technology:Ultra fast bluetooth 5.0 adapter with support up to 3mbps transmission. With 2dBi detachable antenna:It can be rotated 360, and the position can be adjusted at any time according to space requirements, saving space. Can connect your computer to bluetooth-enabled devices: for Android Phone/tablet, Bluetooth mouse&keyboard, Bluetooth speaker and headset. : plastic colour: Black Package Contents: 1 x Receiver 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.