Design and features:These earphones work with or without the noise canceling feature being turned on, and you can use the noise-canceling feature without listening to music. The MOMENTUM True Wireless 2 has an integrated microphone and touch sensitive volume, music player, and call connect/disconnect controls for paired Bluetooth devices, and a monitor function that can be used to make ambient sounds easier to hear while wearing the earphones. Additional features include an auto pause feature that stops audio playback when either earphones is removed from the ears and resumes when they are replaced in the ears, a right side earpiece that can be used alone for one ear monitoring of Bluetooth streamed audio and telephone communications, support for Google Assistant and Apple Siri digital voice assistants when used with Bluetooth devices that have those capabilities, and manufacturer claimed water resistance. This model comes with four pairs of ear pieces in various sizes, a USB charging cable, and a charging cradle/recharger battery/carrying case that the manufacturer claims can be used to recharge the earphone batteries up to 3 times between its own charges. The free Sennheiser Smart Control app download for Apple or Android mobile devices can be used to change the sound of the earphones, change various settings such as deactivating the auto pause feature, choose between pausing and not pausing audio when the monitor function is activated, and update the earphone's firmware.
Sound quality: We found the MOMENTUM True Wireless 2 delivers sound quality that falls in the very good range - it reproduces music and voice very well although it does have some noticeable sonic quirks and excellent active noise reduction. With with the noise canceling mode engaged and the Sennheiser Smart Control app set to Neutral (as received state of the earphone) the bass (as in bass drums, bass guitars, stand-up bass, etc.) has good impact and goes deep, but is somewhat prominent and a bit boomy. The midrange (voices, guitars, horns, etc.) is fairly even, a bit hazy and etched (a bit more sharply outlined then it should be), and somewhat grainy. The treble (cymbals, the upper range of violins, etc.) is extended, but is somewhat prominent and sizzly (sounds that should have a delicate shimmer have a sound reminiscent of bacon frying). The sound also has a decent sense of liveliness and is somewhat open--sound-wise it almost seems like you don't have anything plugging up your ears. It does a good job of recovering room ambience (the sense of the acoustic space in which the audio program that's being listened to was recorded). Warmish to neutral character. The overall sound can best be summarized as somewhat bassy, grainy, and sizzly. The tone settings of the app do have a noticable effect on the sound of these earphones. Noise Canceling: Excellent noise reduction across the entire frequency range with the low frequencies reduced the most. The noise cancelling feature does not produce any noise that can be heard when there is no audio program to drown it out.
Comfort: As typical of in-ear models they produce a sense of pressure in the ear canal opening that might be uncomfortable for some. Users with small earbowls might find that the earphone body feels a bit bulky in their earbowl and that they stick out too far and feel like they may lever out of place and are mostly held in place by the section of the earphone that is inserted in the ear canal, but that they will generally stay in place during casual use. Users with medium and larger sized ear bowls will probably find that this model fits and stays in place with no problems. some uses might find tapping on the touch controls to actuate some of the functions drives the earphone further into the ear canal and causes ear discomfort. Incidental contact with the touch controls can cause unintentional volume level changes, playing, pausing, track skipping, or ambient sound monitoring.
