hand free telephone set

例句：

1. 1. The hand-free telephoneset is a great convenience for people whoneed to talk on the go.
   免提电话机为那些需要在路上通话的人提供了极大的便利。
2. 2. The new hand-freetelephone set has improved sound quality significantly.
   新的免提电话机在音质上有了显著的改进。
3. 3. The hand-free telephoneset is a popular choice for business travelers, as it eliminates the need forholding a phone while talking.
   免提电话机是商务旅行者的首选，因为它消除了打电话时需要手持电话的需求。