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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-01 · 7 min read · Independent comparison
• RLSOCO Carrying Case — biggest strength: a hard, custom-molded EVA and fiber shell built specifically for Bose QuietComfort Ultra (2nd Gen), QuietComfort Earbuds II, and QuietComfort Ultra, so the charging case and cable sit in a fitted slot instead of rattling around.
• RLSOCO Carrying Case — biggest trade-off: it is case-only. There are no earbuds, no charging case, and no accessories in the box, so it is useless to anyone who does not already own the Bose gear it fits.
• TOZO T10 — biggest strength: a complete wireless earbud package with an 8 mm dynamic driver, up to 15 hours per charge and up to 55 hours with the charging case, IPX8 waterproofing, and app-based EQ.
• TOZO T10 — biggest trade-off: it is not a protective accessory at all. It is the audio product itself, so it does nothing for a Bose charging case and its plastic charging case offers no hard-shell crush protection.
• Who each pick is for: RLSOCO for Bose owners who want a compact, water- and dust-resistant hard case to carry their charging case in a pocket or bag; TOZO T10 for someone who needs earbuds and a charging case in one purchase.
The RLSOCO Carrying Case is a single-purpose accessory, and it is honest about that. It is custom-made for the Bose QuietComfort Ultra (2nd Gen), QuietComfort Earbuds II, and QuietComfort Ultra wireless noise-cancelling earbuds, with room for the cable and eartips too. The shell is built from fiber materials and high-density EVA, which is the part that matters: EVA is what gives a case its rigidity, so the earbuds and charging case inside are shielded from knocks, shock, and scratches instead of just being wrapped in fabric. RLSOCO also states the fabric, lining, and EVA compartments are RoHS/SGS certified, and it uses a thicker grade of EVA than typical storage cases so the shape does not collapse over time.
TOZO T10: Who It's For
The TOZO T10 is the opposite kind of purchase: it is a full earbud system, and the charging case is part of the package rather than an add-on. Sound comes from an 8 mm dynamic driver tuned with TOZO's OrigX 2.0 acoustics, and the spec sheet lists a 20 Hz to 20 kHz frequency range, 32 ohm impedance, 112 dB sensitivity, and 60 milliseconds of latency — the low latency figure is the one that matters if you watch video, since it describes how closely audio stays synced to the picture. The earbuds are in-ear with rounded tips, and the box includes four pairs of eartips so you can find a seal that fits.
Battery is the headline. TOZO rates up to 15 hours of playtime on a single charge and up to 55 hours total with the charging case, with a 1.5-hour charge time. The charging case supports wireless charging, so you can drop it on a compatible pad instead of hunting for a cable, and it also ships with a short USB-C cable. IPX8 waterproofing under TOZO's HydroGuard technology means sweat, rain, and splashes are covered, which is what makes these realistic for running and workouts. Bluetooth 5.3 handles pairing and connection stability with a stated range of 15 meters, and the TOZO App adds 32 EQ modes, white noise options, and customizable touch controls on top of the on-bud touch controls.
Buy the T10 if you need earbuds, want long battery life, and like the idea of tuning the sound yourself in an app. Skip it if you are only looking for a protective shell for an existing Bose charging case — this will not fit, and it is not designed to.
Side-by-Side: Which Should You Choose?
• Best for protecting an existing Bose charging case → RLSOCO Carrying Case. Custom fit for QuietComfort Ultra (2nd Gen), QuietComfort Earbuds II, and QuietComfort Ultra.
• Best for workouts and rain → TOZO T10. IPX8 waterproofing versus the RLSOCO's water-resistant, dust-resistant shell.
• Best for drop and crush protection → RLSOCO Carrying Case. Hard EVA shell with a thick, shape-holding construction.
• Best for charging convenience → TOZO T10. The charging case accepts wireless charging, plus USB-C.
• Best for sound customization → TOZO T10. 32 EQ modes and touch control settings through the TOZO App.
• Best for light travel and small bags → RLSOCO Carrying Case. Compact, lightweight, and pocketable for daily carry.
• Best all-in-one purchase → TOZO T10. Earbuds, charging case, four pairs of eartips, and a cable are all included; the RLSOCO is case only.
In my opinion, these are not really competitors — they are two answers to two different questions, so the right move is to be honest with yourself about which question you are asking. If you already own the Bose earbuds and your charging case lives loose in a bag, I would buy the RLSOCO Carrying Case: the hard EVA shell, the fitted interior, and the two-year warranty are exactly what a protective accessory should offer. If you do not yet own wireless earbuds, I would buy the TOZO T10 instead, because it gives you the earbuds and the charging case in one shot with long battery life, IPX8 waterproofing, and app-level EQ control. Buying the RLSOCO hoping for earbuds is the one mistake to avoid here. Whichever way you go, check the current price on Amazon before you commit, since that is the only number that should tip a close call.
FAQ
how to charge earbuds case
With the TOZO T10, you charge the case by placing it on a compatible wireless charging pad or connecting it with the included USB-C cable. TOZO lists a 1.5-hour charge time. Always use the cable and charger type the manufacturer specifies for the product you own.
how to charge case without earbuds
how to charge jlab earbuds case
That is a different brand with its own charging design, and nothing in these two listings covers JLab products. For JLab, follow the charging method described in that product's own manual. The RLSOCO Carrying Case here fits Bose models only and is not a charger at all.
how to charge apple earbuds case
Apple earbuds use Apple's own charging case and cable system, which is unrelated to either product on this page. The RLSOCO Carrying Case is a storage shell for Bose charging cases, not a charger, and the TOZO T10 charges through wireless pads or USB-C. Check your own device's manual for the correct method.
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