Packaging and Accessories

The product box for the 7Hz Eternal is relatively small and sealed in plastic. The box uses a predominantly red color scheme for the outer sleeve, and the entire design is so similar to the 7Hz Timeless that I chose to take photos analogous to the equivalent unboxing section there. We see a clear mention of this being a 10th anniversary launch from the brand, with the company logo and product name showing up alongside a render of the IEMs that also look like the dynamic driver used here. Product specifications—primarily in Chinese—and contact information are seen on the back, where we also find the real name of the company using 7Hz to appeal to customers. As it turns out, all of this is on an external sleeve, which can be slid off the inner box.


The inner box is textured, aquamarine, and again of a two-piece packaging. A lid with the 7Hz logo lifts off to reveal the contents inside. See that red ribbon? I learned from my mistakes with the 7Hz Timeless and did not pull it out from either side as before; rather, pull from both sides so the entire contents lift out of the outer box they are tightly packed in. I do wish the box were slightly larger since it is hard with that random plastic cover on top, but 7Hz is clearly trying to re-use components and even invoke a similar unboxing experience as with the wildly successful Timeless. The contents are placed in two groups, with a case at the top and cardboard box below.


The cardboard box is quite decorative and has a pamphlet holder without any English, which I'd like to see added in future production batches. It's otherwise a quick-start guide on how to use these IEMs and a warranty card with accompanying warranty instructions that will promptly be ignored since customers will just contact the retailer. Two sets of plastic cases have the ear tips, and the two sets of replacement filters that came with the Timeless for when the default ones get too dirty or clog up are missing.


7Hz provides a confusing assortment of silicone-only ear tips with the Eternal, which are in different combinations of color, bore diameter and length, and flange softness. These are supposedly a mix of bass, vocals, and balanced ear tips in different sizes, but there is no way to really say which is which without doing some very careful testing and not falling prey to psychoacoustics. Good luck with that—I am not going to bother going through all this to identify them if 7Hz won't!


The case is what makes the product box so dense for its size, with this being a heavy-duty steel case with a striking copper finish. It's again very similar to the equivalent case that came with the Timeless, but the color here better matches the IEMs and cable. The indented top corner also adds some pizzazz and provides room for the 7Hz logo to be placed over a bead-blasted background for contrast against the brushed finish on the top. On the back, we see a solid hinge inset with the plane of the box, and it is a box that won't easily be placed inside your jeans pocket, either. A magnet holds the lid closed, and we again see a case that proves it can accommodate the IEMs completely as the 7Hz Eternal inside comes with a set of ear tips and the cable pre-installed. Soft velvet lining on the insides prevents scratches to the IEMs while adding further protection, making for a case with a good balance of function and form.


Given these IEMs come with the cable pre-installed, I had to separate them to better examine the parts individually. 7Hz is using MMCX connectors on the Eternal, which may annoy those who have had poor experiences with the connector; make sure to carefully grasp a shell in one hand and the cable connector housing in the other. Ensure they are level and pull away on the connector without wiggling things too much. Repeat the process with the other side and we are now set to proceed.