The SL Boundary SET DW-4 US package from Sennheiser includes the wireless boundary microphone SL Boundary 114-S DW, along with the SL Rack Receiver DW, plus everything needed for installation and usage.

The SL Boundary 114-S DW microphone is optimized for speech transmission in conference rooms, and because it's independent from any cables, it offers highly versatile application possibilities for users.The SL Boundary 114-S DW can be charged either wirelessly or via USB, while the SL Boundary SET DW features inductive charging.

Also available is the wireless power transmitter CHG 2W for (2) mobile devices (sold separately).

The SL Boundary 114-S DW mic provides clear indication of battery life via its dedicated battery status LEDs.

The set includes a rechargeable accupack with up to 12 hours of operating time.