# Which wired earbuds have the best battery life for continuous use? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Which wired earbuds have the best battery life for continuous use?

## Products

### Sennheiser CX 300S
```yaml
product: sennheiser-cx-300s
brand: Sennheiser
price_gbp: 17.75
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 12 g
impedance: 18 Ω
driver_size: 18 mm
cable_length: 1.2 m
frequency_response: 17 Hz to 21,000 Hz
microphone_sensitivity: -44 dBV/Pa
```

- **Price:** £17.75 [^1]
- **Summary:** The Sennheiser CX 300S are wired in-ear earbuds with 18 mm dynamic drivers, enhanced bass, passive noise isolation, and a built-in microphone with a one-button remote. They suit listeners who want lightweight earbuds for phones, tablets, and computers with a 3.5 mm audio connection.
- **Ideal For:** They suit continuous use because the wired design has no battery to recharge, allowing uninterrupted listening through the 1.2 m cable.
- **Additional Sources:** [^2], [^3]

---
## References & Sources
[^1]: Galaxus, accessed 2026-09-05. https://www.galaxus.ch/en/s1/product/sennheiser-cx-300s-no-noise-cancellation-cable-headphones-10293191
[^2]: Noon, accessed 2026-09-05. https://www.noon.com/qatar-en/cx-300s-in-ear-headphone-earbud-headphones-white/N42290854A/p/
[^3]: Son Sound, accessed 2026-09-05. https://www.sonsound.co.za/shop-2/headphones/earphones/sennheiser-cx-300s-earphones/