Plug and play, compatiable with :bitWith miniature buzzerPossess Indicator: Possess indicator, is supplied on the for Microbit, the indicator light is red, and the light does not light if there is no PO Buzzer Jumper Cap: PO buzzer jumper cap, jumper cap for IObit is plugged in by default, the music column block in for Makecode to program, make a sound, usually there will be no sound when on)40P for Microbit Horizontal Socket: The product 40P for Microbit horizontal socket, come with compact sizeType: :bit expansion boardProduct : computer supply: 5VType: expansion boardPurpose: suitable for BBC : bit expansion board moduleFeatured service: support Scratch Python child programmingcolor:BlackMaterial:PCBsize:57 x 37mmPackage Contents:1 x Expansion BoardOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.