We haven't had a chance to fully test this product yet, but we've assembled this helpful overview of relevant information on it.
Sennheiser’s in-ear CX 680i headphones offer users sweat and waterproof architecture, an in-line remote and microphone, and a 3.9-foot cable. The CX 680i additionally features an 18 – 20,000 Hz frequency response, 16 ohms nominal impedance, and 120 dB/mW sensitivity.
- Sweat and waterproof design
- In-line remote
- In-line microphone
- 3.9-foot cable
- 18 – 20,000 Hz frequency response
- 16 ohms nominal impedance
- 120 dB/mW sensitivity
For more headphone buying tips, check out our Headphone Buying Guide.