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 cords Functional 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 tube colour:Black Material:Acrylic size:10.8 x 10cm Package Contents: 3 x Speaker Stand Only 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.