Product Comparison

MM 100 PX 210 BT MM 400 MM 400-X
Discontinued Discontinued
Apt-X Capable • •
Bluetooth® - Listen (A2DP) • • • •
Bluetooth® - Talk (HSP or HFP) • • •
Passive Isolation • • •
Open-Aire •
On-ear • • • •
Frequency Response (Hz) 22-20,000 Hz 15-22,000 Hz 15-22,000 Hz 15-22,000 Hz
Max SPL (dB) 108 dB 107 dB
THD (%) <0.2% <0.1%
Impedance (ohms - Active/Passive) n/a 100/590
Collapsible No • • •
Weight (ounces) 1.9 oz. 3.8 oz.
Battery life (NoiseGard) n/a
Battery life (Bluetooth talk) ≤ 9 hours n/a ≤ 20 hours
Battery life (Bluetooth listen) ≤ 7.5 hours ≤ 12 hours ≤ 10 hours
Battery type Non-removable BA 370
Battery life (BT + NG) n/a
Plays music w/o NoiseGard/Bluetooth • • •
Volume Control • • • •
Detachable Cable • • •
Carrying pouch • • •
Multi-country wall charger US only • • •
USB charger • • • •
1/4" adapter • • •
Airline adapter • •
Sennheiser Electronic Corporation, One Enterprise Drive, Old Lyme, CT 06371 • [phone] • www.sennheiserusa.com
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ANC AND MM SERIES COMPARISON