| 摘要 |
Wireless headphones that allows the user to listen to a signal transmitted from a low power consumption portable FM transmitter that can be plugged into conventional portable (or in full size) receiver/amplifier or cassette, Compact Disc player. This eliminates the use of interconnecting wires. Both headphones and transmitter may be tuned t o a certain number of different frequencies to allow multiple users in the same area.
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