Sennheiser MB 660 Bluetooth Headset: How To Use

Note: We no longer carry this headset and don't carry any other Sennheiser headphones, so we don't have a lot of extra information on them outside of this article. Hopefully this gets you what you need!

The Sennheiser MB660 (now discontinued) is an excellent active noise-canceling headset. It is also optimized for Microsoft Lync to better integrate with softphones like Zoom, RingCentral, 8x8, etc. All its control features take place on the right ear phone.

Using your Sennheiser MB 660

Turning it On/Off

• Turn the earphones inward (so the headset is no longer flat) to turn it on. It will say “Power On” in your ear.
• Turn the earphones outward (so the headset is flat and can go back in its case) to turn it Off. It will say “Power Off.”

  

Pairing to a Bluetooth Device

• Pairing this headset is usually automatic. The headset will say “Pairing” and you will see the run lights on the headset going when it's in pairing mode
• If the headset doesn’t automatically say “Pairing” and show you the lights on the side, you’ll need to manually pair it
• To do this, press the Sound Effect Mode Control button (bottom button on the right side) and hold it for 4 seconds to manually put it into pairing mode (Headset will say "Pairing")
• Then switch your Bluetooth device into Pairing mode OR plug the USB dongle into your computer and they will pair. The USB Dongle it will flash red and blue to show you it's pairing. (USB Dongle not flashing red/blue? Try manually pressing the little button on the end of the dongle for about 3 seconds until it starts flashing red/blue)
• The USB Dongle will glow purple when paired, the headset will say "Phone Connected" or "Dongle Connected" when paired.

Adjusting Volume

• On the outside of the right earphone, use your finger to scroll up to raise the volume or down to lower it

Muting the MB 660

• Draw a circle on the earphone with your finger in a counter-clockwise motion (up and back) to mute the headset.
• Draw a circle on the earphone with your finger in a clockwise motion (up and forward) to turn off mute.

Call Control: (Accepting/rejecting calls or using Voice Dial)

• On the outside of the right earphone...
• Accept or end a call: Tap the center of the earphone once.
• Reject a call: Press and hold the center of the earphone for 1 second.
• Place a call on hold: Press and hold the center of the earphone for 2 seconds.
• Redial: Press down and swipe right on the earphone.
• Voice Dial: Press down and swipe left on the earphone.

  

Music Control: On the right earphone

• Play/pause: Tap the center of the earphone once
• Skip to next: Swipe right (don’t press down)
• Back to previous: Swipe left (don’t press down)
• TalkThrough: Press and hold the center of the earpiece for 2 seconds

Battery Life and Charging: When you first turn the headset on, check the run lights on the right side.

• 5 lights = 80-100% battery life
• 4 lights = 60-80% battery life
• 3 lights = 40-60% battery life
• 2 lights = 20-40% battery life
• 1 light = 2-20% battery life
• 1 red light = less than 2% battery life.

The MB 660 charges via the provided USB cable, which plugs into a computer or can work with a with USB wall adaptor. There is not a way to replace the battery on the MB 660 headset.

Noise Cancellation:

• To activate the Active Noise Cancellation on this headset, click the button above the effect mode button. This button has 3 settings. It will turn on and increase the active noise cancellation. To turn the active noise cancellation down or off, simply slide the button the opposite direction.

Airplane and Corded Modes:

• The MB 660 comes with a 3.5mm cord so you can plug into smart phone headphone jacks. Newer smart phones may require a 3.5mm headphone adapter to use this feature.
• It also comes with a 2-prong adaptor for analog airplane headset jacks. Note: Most airplanes now come with a USB port for headphones.
• Finally, it has a micro-USB-to-USB cord to turn this into a USB headset. This is the same cable as the charging cable. It came be plugged into any USB-A sized port.

Thing it's time for a new headset?

Many Sennheiser Bluetooth Customers have upgraded to the Leitner LH675.