Features:

• Built-in high quality loudspeaker which is automatically muted when the microphone is active, to prevent acoustic feedback.
• Microphone On/Off or request-to-speak button with two signalling LEDs
• Two headphone outputs
• One headphone volume adjustment
• The chairman version (CD) comes with a priority, next-in-line and system volume adjustment button

Controls:

• Red battery status LED
• 4 h remaining : 1 Hz blinking
• 2h remaining : 2 Hz blinking
• 1h remaining : 4 Hz blinking
• Blue out of range status LED
• Off : connection established
• Blinking : searching connection
• On : out of range, shutdown after 2 min

Connectivity:

• Two 3.5 mm jack plugs for headphones
• Battery pack connection
• Screw lock socket to connect removable microphone