[. . . ] [. . . ] Not only is clear Sennheiser Sound quality a given - the lightweight neckband style is perfect for sports, walking the streets or just relaxing in the park without getting tangled up in a cord. Perfect for streets and sports Wireless freedom ­ Stereo Bluetooth® guarantees hands-free convenience and optimized hi-fi stereo sound Outstanding Sennheiser sound ­ Sennheiser acoustic design ensures great music quality Open acoustics ­ deliver a wide dynamic range with detailed and natural sound reproduction Invisible microphone ­ for clear conversations Neckband style ­ is super lightweight and discreet, making it ideal for sports and on the go Easy headset controls ­ seamlessly blend in with the neckband style Secure fit ­ soft cushions for excellent wearing comfort without pressing tightly against the ears Flexible charging ­ rechargeable via supplied USB or wall adapter Connect everywhere ­ to mobiles, laptops or MP3 players ­ or two sources at once if needed Peace of mind ­ thanks to the 2-year international warranty Specifications Headset EAN No. General Data Wearing style Ear cup style Technology Talk time Play time Charging time Standby time Range Weight Headphones Frequency response Distortion Microphone Frequency response Pick-up pattern Accessories Included MM 100 EU 40 44155 047691 6 15104 17487 0 504111 MM 100 UK 40 44155 047707 6 15104 17489 4 504112 MM 100 US 40 44155 047714 6 15104 17495 5 504113 Supra-aural, neckband Open acoustics Bluetooth® Version 2. 0 + EDR / supported profiles: A2DP + AVRCP + HSP + HFP 9h 7. 5h 2. 5h Up to 220h 10m 54g 22­20, 000Hz (*) Less than 0. 2% at 1KHz 100­10, 000Hz (*) Omni-directional USB wall charger for EU, USB charging cable USB wall charger for UK, USB charging cable USB wall charger for USA, USB charging cable (*) The Bluetooth® system will reduce this bandwidth. [. . . ] [. . . ]