Do you have a question about the 3M Peltor LiteCom MT53H7A4400-EU and is the answer not in the manual?
Specifies the operational frequency band and available communication channels.
Details transmission modulation, receiver sensitivity, and radio output power.
Covers communication range, power source, and operational parameters.
Defines the temperature limits for using and storing the device.
Lists directives the product conforms to, including PPE, R&TTE, and ROHS.
Lists European standards the product has been tested and approved against.
Identifies the notified bodies that performed product examinations.
Instructions for adjusting the headband for a proper and secure fit.