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The SpeechLine Digital Wireless SL Handheld DW-4-US from Sennheiser is a wireless handheld transmitter without a capsule. It can be used when paired with a compatible microphone capsule and receiver (sold separately) to capture speech in presentation or lecture applications.
The transmitter requires no settings to be adjusted. The automatic frequency and interference management allows convenient and reliable operation. The LC display provides the link name, battery status, and reception quality.