The all-metal design ensures excellent EMC shielding. The upper and lower parts of the housing are screwed together with the screws supplied. The ideal bugging protection Many smartphones and tablets can be bugged and the cameras activated even when they are switched off. Especially in business, such attacks can cause great damage. During conferences, meetings and other confidential matters, you should therefore keep your mobile phone in this bug-proof box. The case can safely protect your mobile phone from eavesdropping attacks. Mobile phone, telephone, WLAN, Bluetooth and GPS signals are reliably blocked thanks to the EMI/EMC/RFI shielding. Photo, video and microphone functions cannot be activated without your intervention.