Noise cancelling headphones help users sleep well
The Finnish company produces wireless headphones that can block out less than 40 dB of noise with a battery life of 50 hours.
| Clip: Noise-cancelling headphones help users sleep well |
The Finnish company produces wireless headphones that can block out less than 40 dB of noise with a battery life of 50 hours.
| Clip: Noise-cancelling headphones help users sleep well |