Part of the SpeechLine Digital Wireless line of microphone conferencing systems, the Sennheiser SL Boundary 114-S DW-4 B is a wireless boundary microphone optimized for speech transmission in conference rooms, huddle rooms, and meeting spaces. Designed to be placed on a flat surface such as a desk or a conference table, its flat shape is visually unobtrusive for the seated meeting participants. The microphone is equipped with a cardioid polar pattern that picks up the speaker either in front of the mic or in close proximity, ideal for meetings, presentations, video conferencing, streaming, and more.
The SL Boundary 114-S DW-4 B is powered via the included BA 40 rechargeable battery pack, which provides a typical operating time of 13 hours on a full charge. The complete absence of cable gives you speed of setup and the freedom to position the mic anywhere in the room. The battery can be charged wirelessly with the CHG 2W wireless power transmitter (available separately) or via USB.
Compatible with the SL Rack Receiver DW stationary receiver, the SL Boundary 114-S DW-4 B can be monitored and controlled remotely with the free Sennheiser Control Cockpit software (available separately).
Key Features
- Wireless boundary microphone optimized for speech transmission in conference rooms, offices, huddle rooms, and more
- Use for meetings, presentations, video conferencing, streaming
- Complete absence of cable gives you the freedom to position the mic anywhere in the room
- Place on a flat surface such as a desk or a conference table
- Compatible with the SL Rack Receiver DW stationary receiver and the SpeechLine Digital Wireless family
- Includes BA 40 rechargeable battery pack—operates up to 13 hours on a full charge
- Cardioid polar pattern picks up speaker either in front of the microphone or in close proximity
- Unobtrusive flat shape provides desirable low-visual profile
- Clean look without cable
- Supports charging via USB and wireless inductive charging with the CHG 2W wireless power transmitter (available separately)
- Automatic sensitivity adjustment
- Remote monitoring and control via the free Sennheiser Control Cockpit software for Windows, Mac, iOS, and Android (available separately)
- Battery-status LEDs provide clear battery-life indication
Sennheiser SL BOUNDARY 114-S DW-4 B Specs
| Compatibility | SL Rack Receiver DW stationary receiver |
| AF Frequency Response | 40 Hz to 20 kHz |
| Polar Pattern | Cardioid |
| Dynamic Range | < 100 dBA |
| Sensitivity | 10 mV/PA |
| Total Harmonic Distortion (THD) | 0.1%, typically |
| Signal to Noise Ratio | > 90 dBA |
| Sampling Rates | 24-bit / 48 kHz |
| Input Level | 1.7 Vrms, maximum |
| Input Impedance | 30 KOhms |
| RF Frequency Range | 1.92 to 1.93 GHz |
| RF Output Power | Up to 250 mW, adaptive (country-specific) |
| Remote Control | Sennheiser Control Cockpit software (free download, available separately) Windows, Mac, Android, iOS |
| USB Port | Micro-USB B, charging port |
| Power Supply | Type: BA 40 Accupack, lithium-ion rechargeable battery Operating Time: 13 hours, typically Output Voltage: 3.6 V Charging Current: 2200 mAh |
| Temperature Range | Operation: 50 to 113°F / 10 to 45 °C Storage: -4 to 158°F / -20 to 70°C |
| Color | Black |
| Dimensions | 4.49 x 3.36 x 1.21" / 114.04 x 85.34 x 30.73 mm |
| Weight | 7.3 oz / 208 g, without battery |
