Sennheiser MB 660 Bluetooth Headset Resets

Note: We no longer carry any Sennheiser headphones, so we don't have much information outside of this article. Hopefully this gets you what you need!

Experiencing glitches with your Sennheiser MB660 headset? Let's try one of the resets below!

Sennheiser MB 660 General Reset

• Switch the Headset OFF. To do this, turn the earphones outward (so the headset is flat and can go back in its case). It will say “Power Off”
• Press the Effect Mode button for 4-6 seconds. This is the bottom button on the right side of the headset shown in the image below, Section 2. (the inside of the headband will have R for right and L for left)
• Please note: After holding the Effect Mode button down for 4-6 seconds it will not give us any light or say anything. To see if the reset worked try pairing the headset to your device, then test

Headset still acting up? We have something else to try!

Clearing Previously Paired Devices

• Restart the headset by switching it off and on again. To do this, twist the headphones as shown in Section 1 of the first graphic below
• Press the Effect Mode button for 4-6 seconds. This is the bottom button on the right side of the headset, as shown in Section 2 of the graphic below. You will hear tones and a voice prompt that says “Phone X Disconnected” (X = the name of the device, ex: Phone 1 or Phone 2), the headset will then say “Pairing” and the LED lights on the headsets will flash white in sequence
• Press the Effect Mode button again for 4-6 seconds until you hear tones and the voice prompt says “Pairing List Cleared.” The LED lights will flash white in sequence. The headset is now permanently disconnected from all devices and will automatically enter pairing mode

Headset STILL giving you problems? Give our Product Support Team a call at 800-923-0018!