Descripition: This 30pin bluetooth adapter allows the speaker to connect with phone via bluetooth,make your life more convenient. Designed with bluetooth 4.1/4.2,it can connect with most of phone,you can even connect it with tablet. It can connect with 2 device at the same time,if you want to switch among device,as long as pause the music on the one device. Designed with plug and play,this bluetooth audio receiver is convenient,simple for you to use. This bluetooth receiver designed with a compact size and the surface is smooth,you can use it with comfort and easily clean the surface. Specification: Bluetooth: BT 4.1/4.2 size: 3.1 x 4.4 x 0.9cm Material: plastic colour: black Package Contents: 1 x Bluetooth 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.