The Sennheiser Momentum True Wireless earphones are the German headphone specialist’s first foray into true wireless buds. And, as you’d expect, it’s aimed to be top of the pack.
You can tell that by the pricing. At a hair under $500, the only similarly priced wireless earbuds we’ve reviewed were from Bose. Those featured active noise cancellation. These ones don’t.
And that’s about the only feature you might miss.
The Sennheiser Momentum True Wireless buds follow the usual practice for wireless earbuds: they come with a charge case. The batteries built into the buds are rated at a four hour battery life. The case can refill them twice, giving you a total of twelve hours. You charge the charge case with its USB Type-C connection. The case charge time is 1.5 hours.
The case uses magnets to draw the buds in and align them with the electrical contacts. There are four spring-loaded, gold-plated contacts for each bud, plus another couple which look to be nickel plated. The case has a magnetically secured lid.
The case is finished in a very stylish tweedy material. It weighs 58.1 grams and measures 79mm wide, 45mm deep and 35mm thick. It can comfortably fit in the typical pocket if you don’t mind a bit of a lump.
The Sennheiser Momentum True Wireless buds
The Sennheiser Momentum True Wireless buds are small and compact. They come with four different sizes of silicon tips, but there are no plastic/silicone “wings” or “fins” of the kind often provided to hold things in place. It turns out they’re not needed.
Once I’d put the largest size of tips on, I followed the instructions on how to put them in my ears. The shape of the earbuds’ bodies acted as though they were wings, sliding into the whorls of my outer ears, locking things into place. They remained very secure without any discomfort.
The left earbud weighs 6.4 grams, while the right one weighs 7.2 grams. I guess there’s a little something extra on the right side.
Inside each of the Sennheiser Momentum True Wireless buds is a tiny 7mm dynamic driver. I guess that’s how Sennheiser keeps things so small. At this point allow me to mention that size isn’t everything. Yes, for truly deep and powerful bass from loudspeakers you do need large drivers. But things are very different with headphones, and even more so with earbuds. The driver in a bud is directly coupling with your ear canals, exercising a far more direct control over what’s going on in there.
Sennheiser rates their frequency “range” at 5 hertz to 21,000 hertz. It says that they will produce a sound pressure level of a mighty 107dB for just 1mW of input, and that they produce less than 0.08% distortion at 94dB output (in both cases at 1,000 hertz).
The buds are IPX4 rated, which means they’re okay with a bit of splashing (that is, rain) and work-out sweat.
There are no obvious controls on the earbuds. But each bud has a tap-sensitive surface. By means of tapping once, twice or three times, or by tapping and holding you can do the following:
- Skip forwards
- Skip backwards
- Accept and end calls
- Reject calls
- Activate Siri/Google Assistant
- Adjust volume up or down
- Switch on or off “Transparent Hearing”
Sennheiser gets a lot of mileage out of two tap surfaces!
I found it took a little practice to get the correct spot of the surface for reliable tapping, but a little persistence paid off. Having volume controls on the buds themselves is a rare feature for true wireless models, and very welcome.