also: ショルダーホン
noun
shoulder phone
An early mobile phone developed by NTT, worn on the shoulder. Historical term; not in modern use.
1980年代、NTTがショルダーフォンを発売した。
In the 1980s, NTT released the shoulder phone.
Spelling with interpunct; used in some contexts.
Rare variant with interpunct and ホン.
Modern general term for mobile phone; ショルダーフォン is a specific early model.
From English 'shoulder phone'. A loanword coined for the NTT device.