Anker is known more for its value headphones, but it's trying to step into more premium territory with its Soundcore Liberty 2 Pro earbuds, which carry a list price of $150. From a design standpoint, they share some similarities with Sony's WF-1000XM3, although this model doesn't have active noise-cancellation. Anker says they have large 11mm drivers combined with Knowles Balanced Armature, with up to 8 hours of battery life on a single charge (32 total hours of playtime with the case) and noise-cancellation microphones to help reduce ambient sound so callers can hear you better. They charge via USB-C and also support wireless charging.
For better or worse, Jaybird retains its proprietary charging cable with the Tarah earbuds. It’s a lot to fumble around with the cradle compared to just plugging in a USB-C, or even standard microUSB, cable. Gripes aside, battery life is just ok. You get about six hours of listening on a single charge with the Tarah, while the X4 Bluetooth earbuds grant eight hours of playback. You do benefit from quick charging, though, whereby 10 minutes of charging yields one hour of playback.
That depends on what you’re using them for and how much you’re willing to spend. At the high-end, over-ear and in-ear headphones can both perform fantastically. For those of us not willing to spend thousands on headphones, over-ear headphones typically offer better bass response and a bigger soundstage, but in-ear headphones are significantly more portable and convenient — especially wireless earbuds.
This eye mask is ideal for those who want both audio and light blocking to fall asleep. The Sleepace app is also surprisingly useful. It offers white noise and ASMR tracks to help you get to sleep, and lets you set alarms for wake-up audio. Sensors watch for signs that you’ve fallen asleep and stop the audio from playing, as well as tracking your sleep over time so you can see if anything is disturbing your cycle. It’s a lot of utility for an eye mask, and the price is very reasonable too.
If you can't afford the AirPods Pro, the Anker Soundcore Liberty Air 2 is a good alternative and are a top model for making calls. Like the AirPods Pro, they do a remarkably good job of muffling ambient noise (callers said they could hear me fine even with a lot of street noise around me). While they don't have active noise canceling, they sound nearly as good, fit comfortably and their noise-isolating design passively seals out a lot of ambient noise. They only cost $100.
Headphones are made in a range of different audio reproduction quality capabilities. Headsets designed for telephone use typically cannot reproduce sound with the high fidelity of expensive units designed for music listening by audiophiles. Headphones that use cables typically have either a 1/4 inch (6.35mm) or 1/8 inch (3.5mm) phone jack for plugging the headphones into the audio source. Some stereo earbuds are wireless, using Bluetooth connectivity to transmit the audio signal by radio waves from source devices like cellphones and digital players. Due to the spread of wireless devices in recent years headphones are increasingly used by people in public places such as sidewalks, grocery stores, and public transit. Headphones are also used by people in various professional contexts, such as audio engineers mixing sound for live concerts or sound recordings and DJs, who use headphones to cue up the next song without the audience hearing, aircraft pilots and call center employees. The latter two types of employees use headphones with an integrated microphone.
At first glance, the Elite 75t, which was originally supposed to cost $200 but now sells for $180 (£170 and AU$299), seems more like an evolutionary upgrade from the highly rated Elite 65t. But the updates turn out to be a little more substantial than I first thought. The Elite 75t's smaller size (the buds and case are 20% smaller than the Elite 65t's), its boosted battery life and USB-C charging are significant upgrades. And then there are the smaller changes, like the new charging case design with magnets inside it that make it easier to open and close and to keep the buds inside. While the Elite 75t isn't quite as comfortable to wear as the AirPods Pro and doesn't have active noise canceling, it does sound better, with clearer overall sound and better bass definition, so long as you get a tight seal.
These early headphones used moving iron drivers, with either single-ended or balanced armatures. The common single-ended type used voice coils wound around the poles of a permanent magnet, which were positioned close to a flexible steel diaphragm. The audio current through the coils varied the magnetic field of the magnet, exerting a varying force on the diaphragm, causing it to vibrate, creating sound waves. The requirement for high sensitivity meant that no damping was used, so the frequency response of the diaphragm had large peaks due to resonance, resulting in poor sound quality. These early models lacked padding, and were often uncomfortable to wear for long periods. Their impedance varied; headphones used in telegraph and telephone work had an impedance of 75 ohms. Those used with early wireless radio had more turns of finer wire to increase sensitivity. Impedance of 1000 to 2000 ohms was common, which suited both crystal sets and triode receivers. Some very sensitive headphones, such as those manufactured by Brandes around 1919, were commonly used for early radio work.