Short answer: the Roseselsa Ceramics MK2. It ranks #284 of 450 in-ear headphones by sound quality, rated 3.9/5, at $34.99; the 7Hz G1 ranks #322, rated 3.8/5, and costs $36.99, so there is little reason to consider the other one.
Buy the Roseselsa Ceramics MK2. It is rated higher for sound quality than the 7Hz G1 and costs less, which makes it the one to get unless you need something the other one does better.
Looking for alternatives? See the complete Headphones rankings.
Specifications Side By Side
| Roseselsa Ceramics MK2 | 7Hz G1 | |
|---|---|---|
| Price | $34.99 | $36.99 |
| Ranked | #284 of 450 in In-Ear Headphones | #322 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 73 (median of 3 squig.link measurements, calibrated to AutoEQ) | 72 (median of 14 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.05 dB standard deviation | 1.95 dB standard deviation |
| Tonal Tilt | -0.37 (negative is warmer, positive brighter) | -0.54 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.4 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+2.4 dB at 30 Hz) |
| Connection | True wireless | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic | 1 x 10mm dynamic |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | 10Hz - 20kHz (Manufacturer specified) |
| Weight | 0 lbs (4.3 g) per earbud | 0 lbs (8.8 g) per earbud |
| Active Noise Cancelling | Yes | - |
| Battery Life | 12 hours (45 with case, Manufacturer specified) | - |
| Bluetooth Version | 6.0 | - |
| Bluetooth Codecs | SBC, AAC, LDAC | - |
| Built-in Microphone | Yes | Yes |
| IP Rating | IPX4 | - |
| Impedance | - | 18 ohms |
| Sensitivity | - | 107 dB/V |
Related Headphone Comparisons
How Roseselsa Ceramics MK2 compares with other leading options:
- Roseselsa Ceramics MK2 vs ZiiGaat Rumba
- Roseselsa Ceramics MK2 vs Kiwi Ears Belle
- ZiiGaat Rumba vs 7Hz G1
- 7Hz G1 vs Kiwi Ears Belle
- 7Hz G1 vs Tin HiFi C5
Prices on this page were last checked October 11, 2026 at 4:59 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Headphones In Full
Roseselsa Ceramics MK2: $34.99 TWS Amazon eBay
Full Roseselsa Ceramics MK2 review and specifications →
| Released | 2026 (this year) |
|---|---|
| Active Noise Cancelling | Yes |
| Back | Closed |
| Battery Life | 12 hours (45 with case, Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 6.0 |
| Built-in Microphone | Yes |
| Connection | True wireless |
| Deviation From Target | 2.05 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 73 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| IP Rating | IPX4 |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.4 dB at 30 Hz) |
| Tonal Tilt | -0.37 (negative is warmer, positive brighter) |
| Weight | 0 lbs (4.3 g) per earbud |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
7Hz G1: $36.99 Amazon eBay
Full 7Hz G1 review and specifications →
| Released | 2024 (2 years ago) |
|---|---|
| Back | Closed |
| Built-in Microphone | Yes |
| Connection | Wired |
| Deviation From Target | 1.95 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 10Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 72 (median of 14 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 18 ohms |
| Sensitivity | 107 dB/V |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+2.4 dB at 30 Hz) |
| Tonal Tilt | -0.54 (negative is warmer, positive brighter) |
| Weight | 0 lbs (8.8 g) per earbud |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons