The GN 1613 is a simple tester for use with all GN Netcom headsets. Designed to give confidence to all users that their headsets are safe, this is a compact, space-saving design with increased ergonomic and productivity benefits. This tester will allow all users to check whether the protection circuits are fully operational in their headset. All GN Netcom headsets are provided with special circuits that protect the users hearing from 'Acoustic Shock". The limits for 'Acoustic shock" are fully defined in European safety legislation. more