JB-1838B Multi-functional Secure Display Stand With alarm function, this JB-1838B is mainly designed for secure displays of live merchandises such as mobile phones, cameras, mp3/ mp4, PDA, GPS, and etc.. Secure & neat displays of these merchandises, interactions between consumers and merchandises are also realized with this product. And thus better promote sales of open merchandises. Main features Independent alarm function: If sensor wire is cut, or sensor is separated from the displayed merchandise, system will give alarm immediately. Battery backup: If there is any power cut in sale places, the inbuilt batteries can continue & supply power for support. Many sensor options: In view of different display requirements, we prepared different sensors for your option. Double security: We can add a reel to this system for double security for the open merchandise ( security from both the reel & the electronic sensor) Off-hook signal output: If required, off-hook signal output can be available ( for driving LCD advertisement system) . Multi - tamper & alarm function: Tamper security for overall unit, the cover, the holder, and etc.. Charger function for open merchandise: If this function is added, our system can provide a 4.2V for charging mobile phone battery. Different switch options: Key switch ( standard) or remote control ( need your statement before ordering) Flexible & Easy installation: A. Directly fix it by screw B. Select our T-shaped base & fix system to display desk via a 3M tape.