Short answer: a tie on sound quality. Both are rated 4.4/5 (#95 and #124 of 450 in-ear headphones) at nearly the same price ($39.99 vs $39.99), so choose on features and fit.
The case for the KBEAR KB02: Across eleven squig.link measurements the KB02 earns a preference score of 79.1 with a smooth 1.41 dB deviation, an impressive result at its low price. Watch for: An 8.7 dB peak near 11.5 kHz adds a sharp sparkle that can make hi hats and sibilance sting.
Buy the KBEAR KB02 or the Moondrop Space Travel 2 Ultra on features: they are rated the same for sound quality at close to the same price.
Want more options? Browse the full Headphones rankings.
Specifications Side By Side
| KBEAR KB02 | Moondrop Space Travel 2 Ultra | |
|---|---|---|
| Price | $39.99 | $39.99 |
| Ranked | #95 of 450 in In-Ear Headphones | #124 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 79 (median of 11 squig.link measurements, calibrated to AutoEQ) | 78 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.41 dB standard deviation | 1.69 dB standard deviation |
| Tonal Tilt | -0.51 (negative is warmer, positive brighter) | +0.06 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+2.0 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-2.9 dB at 30 Hz) |
| Connection | Wired | True wireless |
| Driver Type | Hybrid (1 dynamic + 1 bone conduction) | Planar magnetic |
| Drivers | 1 x 10mm dynamic + 1 x 10mm bone conduction | 1 x 13mm planar magnetic |
| Impedance | 40 ohms | - |
| Sensitivity | 108 dB/mW | - |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | - |
| Built-in Microphone | No | Yes |
| Active Noise Cancelling | - | Yes |
| Battery Life | - | 7 hours (24 with case, Manufacturer specified) |
| Bluetooth Version | - | 6.0 |
| Bluetooth Codecs | - | SBC, AAC, LDAC |
Related Headphone Comparisons
More top alternatives to KBEAR KB02:
- Tin HiFi T2 DLC vs KBEAR KB02
- CCA Pianist vs KBEAR KB02
- CCA Pianist vs Moondrop Space Travel 2 Ultra
- Tin HiFi T2 DLC vs Moondrop Space Travel 2 Ultra
- Ooopusx OP22 vs TRN Conch
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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Headphones In Full
KBEAR KB02: $39.99 Amazon eBay
Pros: Across eleven squig.link measurements the KB02 earns a preference score of 79.1 with a smooth 1.41 dB deviation, an impressive result at its low price. Sub-bass sits about 1.7 dB above target and stays strong to 20 Hz, so bass lines and electronic drops have satisfying rumble for listeners who like a warm, bassy tilt. Its 40 ohm, 108 dB/mW rating means a phone drives it easily.
Cons: An 8.7 dB peak near 11.5 kHz adds a sharp sparkle that can make hi hats and sibilance sting. A 4.8 dB dip near 6.3 kHz just below it softens the attack of snares and guitars, so the treble can sound uneven rather than smoothly extended.
Full KBEAR KB02 review and specifications →
| Back | Closed |
|---|---|
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 1.41 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 1 bone conduction) |
| Drivers | 1 x 10mm dynamic + 1 x 10mm bone conduction |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 79 (median of 11 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 40 ohms |
| Sensitivity | 108 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+2.0 dB at 30 Hz) |
| Tonal Tilt | -0.51 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Moondrop Space Travel 2 Ultra: $39.99 TWS Amazon eBay
Full Moondrop Space Travel 2 Ultra review and specifications →
| Released | Aug 2025 (1 year ago) |
|---|---|
| Active Noise Cancelling | Yes |
| Back | Closed |
| Battery Life | 7 hours (24 with case, Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 6.0 |
| Built-in Microphone | Yes |
| Connection | True wireless |
| Deviation From Target | 1.69 dB standard deviation |
| Driver Type | Planar magnetic |
| Drivers | 1 x 13mm planar magnetic |
| Form Factor | In-ear |
| Harman Preference Score | 78 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.9 dB at 30 Hz) |
| Tonal Tilt | +0.06 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons