Suitable for All Small portable speakers even with an outer case, Mount behind your bed with bluetooth speaker/phone/alarm clock on it.Hold speakers or smart devices up to 800g.Convenient and attractive to hold Small Wireless Speakers/Smartphones/Mirrorless Camera/Baby Monitor/Alarm Clock//Smart Devices in room, kitchen,office etc. USB cord access hole with slot to position and conveniently retain plugs and cordsFunctional and easy to install. Please kind follow the picture 1) Drill a hole in the wall, 2) Put the expansion tube into the hole. 3) Screw the screw into the expansion tubecolour:BlackMaterial:Acrylicsize:10.8 x 10cmPackage Contents:3 x Speaker StandOnly the above package content, other products are not included.Note: Light 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.