Boult K40
Launched Feb 2024 · Earbuds (TWS)
Usual price₹899
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Usual price ₹899 · launch price ₹899
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Score breakdown
No reviews; basic bassy Boult tune
No ANC; in-ear seal only
7 h bud, 48 h total claims; unmeasured
Low-latency mode, IPX5, AAC; no app or multipoint
Quad-mic ENC; no tests
No reviews; average budget fit
Each part is rated on one scale for every earbud and headphone, from lab test measurements where they exist, what reviewers found, specs and owner reports. It rates the product itself, not how good it is for the price.
Full specs
| Drivers | 13 mm dynamic |
|---|---|
| Codecs | SBC, AAC |
| Hi-Res audio | No |
| Spatial audio | No |
| Equaliser | None |
| ANC | No |
|---|---|
| Transparency / ambient mode | No |
| Earbuds alone | 7 h |
|---|---|
| With the case | 48 h |
| Fast charging | 10 min = 100 min |
| Wireless charging | No |
| Microphones | 4 |
|---|---|
| Call noise reduction | Quad-mic AI ENC |
| Bluetooth | 5.3 |
|---|---|
| Latency / game mode | 45 ms (maker's figure), game mode |
| App | No |
| Water resistance | IPX5 |
|---|---|
| Controls | touch |
| Warranty | 1 year |
|---|---|
| Colours | Berry Red, Denim Blue, Ivory White, Khaki Green, Electric Black |




