The Sennheiser SL Bodypack - MKE 40 KIT DW-4 combines the compact and robust Speechline SL Bodypack DW digital wireless transmitter with the black MKE 40 cardioid lavalier microphone for professional speech and conference use. It also includes BA 30 rechargeable batteries.

Sennheiser SpeechLine Digital Wireless SL Bodypack DW-4-US Wireless Transmitter
Sennheiser's SpeechLine Digital Wireless SL Bodypack DW-4-US is a speech-optimized SL Series wireless transmitter. It can be combined with an optional wireless receiver and microphone for meetings, lectures, conference presentations and applications where every word counts. It is also compatible with all Sennheiser microphones such as the SL Headmic 1 or MKE 1 (sold separately).
Two-way communication between transmitter and receiver and automatic frequency and interference control for easy and reliable operation means that the SL bodypack should have no maintenance problems. An LCD screen provides the connection name, battery status and reception quality, and an easily accessible negative slider makes the microphone very easy to use.

It also comes with a rechargeable BA 30 battery with external chargers for easy charging via the SL bodypack, CHG 2 and USB sockets. Offer up to 15 hours of work at full cost. Finally, the Sennheiser Control Cockpit software (download) provides easy operation, control and monitoring of the SpeechLine digital wireless system.
It provides an overview of all network-enabled devices, displays all status information and makes configuration a breeze.

Sennheiser MKE 40 - Cardioid Lavalier Microphone with Hardwired 1/8" TRS Connector for EW Series Bodypack Transmitter

The Sennheiser MKE 40 is a condenser lavalier microphone compatible with the SK 100, SK 300 and SK 500 Evolution Wireless Series waistband transmitters. It has a cardioid polar pattern that helps prevent unwanted sounds from the microphone and increases pressure before feedback, making it ideal for capturing words on stage or in any audio application. The

MKE 40 has a frequency response of 40 Hz to 20 kHz and can handle sound levels up to 118 dB. It can be used for highs and instruments to capture direct sounds and accurately reproduce bass.

microphone comes with two vents (black and grey), clip (black) and magnetic mount kit MZM 2 / MZM 10.

Key Features

• Clip-on lavalier microphone with cardioid pattern
• Suitable for both voice and instrument miking in live sound applications
• Optimized for speech intelligibility
• High gain-before-feedback
• 40 Hz to 20 kHz frequency response 
• Accurate bass reproduction
• 1/8" (3.5mm) locking connector
• Compatible with SK 100, SK 300, and SK 500 Evolution Wireless Series bodypack transmitters
• Includes two windshields (black & Gray)
• Includes clip and MZM 2 / MZM 10 magnetic mount set