Impedance
32 Ohms
Frequency
20000 Hz
Design
| Fit i | Open-ear (44 others) |
| Ingress protection (ip) rating i | IPX4 (152 others) |
| Water resistance i | Sweat resistant (434 others) |
| Has no wires or cables i | ✔ (570 others) |
| Are neckband earbuds i | ✖ |
| Wingtips included i | ✖ |
| Has rgb lighting i | ✖ |
| Has stereo speakers i | ✔ (674 others) |
Sound quality
| Has active noise cancellation (anc) i | ✖ |
| Has passive noise reduction i | ✖ |
| Driver Unit Size i | 10 mm (141 others) |
| Lowest frequency i | 20 Hz (573 others) |
| Highest frequency i | 20000 Hz (513 others) |
| Supports spatial audio i | ✖ |
| Has dolby atmos i | ✖ |
| Has dirac virtuo i | ✖ |
| Impedance i | 32 Ohms (123 others) |
Power
| Battery Life i | 10 hours (79 others) |
| Battery Life Of Charging Case i | 42 hours (16 others) |
| Charge time i | 2 hours (149 others) |
| Battery Power i | 45 mAh (11 others) |
| Battery power (charging case) i | 500mAh (25 others) |
| Has wireless charging i | ✖ |
| Has A Solar Power Battery i | ✖ |
| Has a battery level indicator i | ✔ (669 others) |
Connectivity
| Has fast pairing i | ✖ |
| Has usb type c i | ✔ (603 others) |
| Bluetooth Version i | 5.4 (90 others) |
| Has ldac i | ✔ (116 others) |
| Has ldhc i | ✔ (36 others) |
| Has bluetooth le audio i | ✖ |
| Has aptx adaptive i | ✖ |
| Has aptx low latency i | ✖ |
| Has aptx hd i | ✖ |
Microphone
| Has a noise canceling microphone i | ✔ (520 others) |
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Frequently Asked Questions
How big is the Roseselsa OpenFree battery?
At 45 mAh, the Roseselsa OpenFree is 49% below the category average for battery capacity, ranking #244 out of 349 — see ranking wireless earbud products.
What is the battery life of charging case of the Roseselsa OpenFree?
At 42 hours, the Roseselsa OpenFree is 48% above the category average for battery life of charging case, ranking #42 out of 563 — see ranking wireless earbud products.
How long does the Roseselsa OpenFree take to charge?
At 2 hours, the Roseselsa OpenFree is 31% above the category average for charge time, ranking #415 out of 590 — see ranking wireless earbud products.
What is the impedance of the Roseselsa OpenFree?
At 32 Ohms, the Roseselsa OpenFree is 30% above the category average for impedance, ranking #6 out of 264 — see ranking wireless earbud products.
What is the highest frequency of the Roseselsa OpenFree?
At 20000 Hz, the Roseselsa OpenFree is 15% below the category average for highest frequency, ranking #132 out of 652 — see ranking wireless earbud products.
Does the Roseselsa OpenFree have wireless charging?
No, the Roseselsa OpenFree does not have wireless charging. This feature is available in 32% of wireless earbuds.
Does the Roseselsa OpenFree support Dolby Atmos?
No, the Roseselsa OpenFree does not support Dolby Atmos. This feature is available in 17% of wireless earbuds.
How does it compare?
How does the Roseselsa OpenFree's battery life of charging case compare to similar wireless earbudss?
At 42 hours, the Roseselsa OpenFree leads the Technics EAH-AZ100 (18 hours) by 57%.
How does the Roseselsa OpenFree's highest frequency compare to similar wireless earbudss?
At 20000 Hz, the Roseselsa OpenFree trails the Technics EAH-AZ100 (40000 Hz) by 50%.
How does the Roseselsa OpenFree's impedance compare to similar wireless earbudss?
At 32 Ohms, the Roseselsa OpenFree leads the Technics EAH-AZ100 (16 Ohms) by 50%.
How does the Roseselsa OpenFree's charge time compare to similar wireless earbudss?
At 2 hours, the Roseselsa OpenFree trails the Nuraphone NuraTrue Pro (1 hours) by 50%.
How does the Roseselsa OpenFree's battery life compare to similar wireless earbudss?
At 10 hours, the Roseselsa OpenFree leads the Nuraphone NuraTrue Pro (8 hours) by 20%.
How does the Roseselsa OpenFree's battery capacity compare to similar wireless earbudss?
At 45 mAh, the Roseselsa OpenFree trails the Earfun Air Pro 4 (54 mAh) by 17%.
How does the Roseselsa OpenFree's battery power (charging case) compare to similar wireless earbudss?
At 500mAh, the Roseselsa OpenFree trails the Earfun Air Pro 4 (600mAh) by 17%.