6 Inch Ceiling Speakers In Wall Speaker Home Audio Stereos Tweeter 6Pcs 180kg This is to prevent over-discharging

This is to prevent over-discharging of the battery which will cause irreparable damage to it

Castor wheels stand - Easy moving around from indoor to outdoor

To use a cam lock

This will charge your Macbook Pro/Air at full speed

6 Inch Ceiling Speakers In Wall Speaker Home Audio Stereos Tweeter 6Pcs 180kg This is to prevent over-dischargingCreate a clean audio setup in your home with our 6 inch Ceiling Speaker. Embedding speakers onto the ceiling allows you to hide all the messy wiring and the body of the speaker for a setup that looks clean, sleek and professional. And installation is easy and quick: simply cut a hole in the ceiling with a diameter of 193mm, then insert the speaker into the hole until the retaining spring clips snap into place at the back of the ceiling. No screws