它还具有蓝芽2.0，让这个智能连接、立体声无线耳机耳机。
It also has Bluetooth 2.0, allowing this smartphone to connect to wireless headsets and stereo headphones.
介绍了立体声红外无线耳机和发射机的工作原理，设计了一种实用电路，给出了主要性能指标。
The operating principle and design of an infrared wireless earphone and sender are presented in the paper. The main performance parameters are given.
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