Best Lists · Spec comparison
| Product DB | Driver | Impedance | Sensitivity | Frequency | Weight | Battery | ANC | Year | Price |
|---|---|---|---|---|---|---|---|---|---|
| Kaisheng DM7Ti | Dynamic | 32 Ω | 113 dB | 4-45000 | — | — | No | 2024 | $1,410 |
| Kaisheng Black Bell Manji-Gold | Dynamic | 32 Ω | 110 dB | — | — | — | No | — | $1,282 |
| Kaisheng DM7S137 | Dynamic | 137 Ω | 106 dB | 20-20000 | — | — | No | 2026 | $420 |
| Kaisheng DM7 | Dynamic | 32 Ω | 112 dB | 20-20000 | — | — | No | 2024 | $291 |
| Huawei FreeClip | Dynamic | — | — | 20-20000 | 5.6 g | 8/36 h | No | 2023 | $199 |
| 1MORE S50 | Dynamic | — | — | — | 11 g | 12/42 h | No | 2023 | $149 |
| Nothing Ear (open) | Dynamic | — | — | 20-20000 | 8.4 g | 8/30 h | No | 2024 | $149 |
| Soundcore AeroFit Pro | Dynamic | — | — | — | 12.2 g | 14/46 h | No | 2024 | $99 |
| Kaisheng X6 | Dynamic | 30 Ω | 110 dB | — | 2.6 g | — | No | — | $46 |
| Kaisheng X10 | Dynamic | 30 Ω | 111 dB | — | 2.6 g | — | No | — | $37 |
Headphone Reviews · Why this ranking
The trade-offs are unusually clear here. Wired flatheads drop to 2.6 g per earpiece, at the cost of needing a socket and offering no water-resistance rating; wireless open-ear models add Bluetooth 5.3, microphones and IP54/IPX5 protection, but climb to 5.6–12.2 g and need charging. Impedance is the dividing line in the specs: five of the six wired models sit at 30–32 Ω and run straight from a phone, while only the DM7S137 at 137 Ω demands a stronger source (the four wireless models publish no impedance figure). On driver size, the 16 mm Kaisheng Black Bell Manji-Gold and the 16.2 mm Soundcore AeroFit Pro top their respective categories, and only the Kaisheng DM7Ti claims a 4 Hz–45 kHz range.
Earbuds without silicone tips come in two families. Flathead designs rest their housing against the outer ear and rely on shape rather than a seal to stay put. Open-ear clip and hook designs hold a driver at the entrance of the canal. What they share is an ear canal that stays open: you hear your surroundings, nothing presses or builds up heat, and long sessions do not require re-seating. The trade-off is a total absence of passive isolation, and bass that depends on how well you place them.
How we ranked them
Models had to avoid silicone tips entirely (flathead or open-ear), publish manufacturer specs, and be currently available. Eleven of the 216 products in our database qualify; this list takes ten (the X3S is left out for lack of published specs). Ranking runs by positioning — flagships first — with driver size deciding within a tier, so the front of the list is high-end flatheads and the tail is entry flatheads plus the wireless open-ear designs.
Wired or wireless?
The six wired flatheads here weigh just 2.6 g per earpiece and involve no battery or codec, but they need a socket. The four wireless open-ear models add Bluetooth, microphones and IP ratings, at 5.6–12.2 g per earpiece, which suits commuting and training. Impedance is the number to watch: 30–32 Ω is easy territory, while the DM7S137 at 137 Ω is the only model here that genuinely asks for a stronger source.
- Isolation: none of these designs seal, so do not expect noise reduction on a plane or a subway.
- Water resistance: IP54 or IPX5 is the practical threshold for wireless sports use.
- Codecs: the two LDAC-capable models pair best with hi-res Android gear.
- Weight: 2.6 g versus 12.2 g per earpiece decides how they feel after a few hours.
- Drivability: 30–32 Ω runs from a phone; 137 Ω deserves a dongle or amplifier.
The short version: the Kaisheng X10 and X6 are the cheapest way into a flathead at 2.6 g per earpiece; the Kaisheng DM7Ti claims the widest range and highest sensitivity; the Huawei FreeClip is the lightest wireless pick for commuting; and for LDAC with water resistance, the 1MORE S50 and Soundcore AeroFit Pro both qualify. If you need isolation instead, a conventional in-ear is the right choice — our ANC earbuds ranking is the place to start.