Communication applications and devices, namely, headsets for use with telephones, mobile phones, cellular phones, VoIP phones, computers and telephone communication systems; telephones; speakerphones; headphones; handsets, namely, telephone handsets; chargers, namely, battery chargers; software for operation, management and connection of headsets and hands-free devices for use with computers and communications devices; phone adapters, namely, adapters used for connection of headsets and hands-free devices to telephones, computers, VoIP phones and mobile phones; structural parts and accessories for the aforementioned goods