Sennheiser SL Boundary 114-S DW-3B

Sennheiser SL Boundary 114-S DW-3B, Boundary Microphone, 1.9 GHz wireless band (1880 - 1900 MHz), Compatible with SL Rack Receiver DW, Programmable micro switch (PTT, PTM, toggle on/off, permanent ON), Remote control and monitoring with Sennheiser Cockpit Control, Wireless charging via Qi Charging or USB, Up to 13 hours battery life, Polar pattern: Half-cardioid, Frequency range: 40 - 20,000 Hz, Micro-USB socket, On/Off/Mute switch with status LED, Worldwide registration and license-free operation, Dimensions: 114 x 85 x 31 mm, Weight: 0.2 kg, Includes battery (BA 40) and manual, Suitable charging base available under Art.#503841# (not included in delivery) ...