Headphone Product Library · Full specs
| Series | May |
| Form | IEM |
| Driver Type | Dynamic |
| Driver Size | 10 mm |
| Impedance | 20 Ω |
| Sensitivity | 110 dB |
| Frequency Range | 20-40000 |
| Weight | 5 g |
| ANC | No |
| Microphone | No |
| Waterproof | — |
| Released | 2024 |
Acoustic specs
Spec comparison · relative to this model
| Product DB | Moondrop May ★ | Sennheiser IE 200 | Etymotic ER2XR | Kiwi Ears Melody |
|---|---|---|---|---|
| Driver | Dynamic | Dynamic | Dynamic | Planar |
| Impedance | 20 Ω | 18 Ω↓-2 | 15 Ω↓-5 | 16 Ω↓-4 |
| Sensitivity | 110 dB | 119 dB↑+9 | 99 dB↓-11 | 103 dB↓-7 |
| Frequency | 20-40000 | 6-20000↓-20000 | 20-16000↓-24000 | 20-40000 |
| Weight | 5 g | 4 g↓-1 | 5 g | 10 g↑+5 |
| Battery | — | — | — | — |
| ANC | No | No | No | No |
| Year | 2024 | 2022↓-2 | 2019↓-5 | 2024 |
| Price | $149 | $149 | $149 | $149 |
↑↓ = difference vs the ★ model; lighter, longer battery and wider response are shown in green. “—” means the maker does not publish that figure.
Moondrop May is Moondrop’s wired in-ear, released in 2024 at $149. The spec sheet lists dynamic、10 mm、20 Ω、110 dB、5 g。Its value is not one dramatic number but where those specs land at this price.
1. Where it sits on the shelf
On this wired in-ear shelf its price ranks 28th (57 models with a price), and 11th most expensive of the 17 models in the $100–200 band. At 5 g it ranks 13th lightest of the 57 models with weight data. 20 Ω ranks 26th highest of the 57 models that publish impedance. 110 dB ranks 24th lowest of the 57 models that publish sensitivity.
2. What the numbers change in daily use
At 20 Ω and 110 dB sensitivity. Ordinary gear can drive it; no dedicated amp is required.
The rated frequency response reaches 40 kHz.
3. Fit, isolation and use cases
At 5 g it is on the light side for this form factor. In-ear tips give passive isolation, enough for commuting. No water-resistance rating is published, so sport and rain are out.
4. Head to head with its three closest rivals
The three closest rivals at this price are the Sennheiser IE 200, Etymotic ER2XR and Kiwi Ears Melody. Sennheiser IE 200 ($149 (same price))：4 g、18 Ω、119 dB；Etymotic ER2XR ($149 (same price))：5 g、15 Ω、99 dB；Kiwi Ears Melody ($149 (same price))：10 g、16 Ω、103 dB。
5. Weaknesses worth stating
- No water-resistance rating is published: sweaty workouts and rainy commutes are out.
- Price position: of the 17 models in the $100–200 band, 8 cost more and 3 cost less.
6. What to buy instead at the same price
- The direct rivals are the three models from section 4 (Sennheiser IE 200、Etymotic ER2XR、Kiwi Ears Melody) — which to pick depends on the spec you care about.
- Other checkable models in the $100–200 band: Sennheiser IE 200（$149、18 Ω、119 dB、4 g）、Etymotic ER2XR（$149、15 Ω、99 dB、5 g）、Kiwi Ears Melody（$149、16 Ω、103 dB、10 g）.
7. Who it is for — and who it is not
- Long sessions: 5 g is on the light side for this form factor.
- Sport or rain: no water-resistance rating is published.
- Wireless-only listeners: this is a wired model needing a front end and a cable.
Data note: every claim comes from maker-published specs in our own product database and same-price comparisons (price, weight, impedance, sensitivity, frequency response, codecs and battery are checkable fields). No unmeasured listening impressions are included; unpublished figures show as “—” in the table.