The M-2s are also more ergonomic than their cylindrical ancestors. Battery life hasn't changed much, though: You can expect 3 hours on a charge, and the magnetic charging capsule will give you a total of 12 hours of listening. This is more for your workout than a long flight, in other words. Earin hasn't divulged pricing, but the new earbuds should hit shelves near the end of the first quarter.

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