The MM 400 is a state-of-the-art Stereo Bluetooth® headset for multimedia mobile phones. With one press of a button, you can quickly switch between calls and music delivered in superb stereo sound. The invisible high-performance microphone ensures that conversations are clear, making this headset the perfect all-in-one sound solution.

• Wireless freedom with Bluetooth® 2.1 guarantees hands-free convenience without wires and the advanced A2DP profile for Stereo Bluetooth® delivers optimized hi-fi stereo sound
• Invisible microphone with high-performance sound quality for clear conversations
• Direct cable option for use on airplanes, with an airline adapter included
• Easy headset controls in one intuitive cluster
• Sennheiser sound quality: hi-fi headphone drivers ensure superior dynamic range, detail and excellent bass
• Wearing comfort: padded ear-cushions provide an excellent soft fit, even on long trips
• Easy-2-GO: the headset folds into a compact bundle for travel and storage, while the headband is metal-reinforced for durability
• Flexible: replace the battery with a spare on long trips – or recharge it via the USB port on your laptop or the supplied lightweight wall charger with different plug fittings for Europe, the USA, the UK and Australia
• Connect everywhere: to mobiles, laptops, MP3 players, or in-flight entertainment systems with an all-in-one headset solution
• Peace of mind thanks to the 2-year international warranty
  

Package Includes

• USB wall charger for US, EU, UK and AU plus USB charging cable
• In-flight adapter (3.5mm double mono adapter)
• 3.5mm audio cable
• Carry case