Deltaplus CONICFIR050 TPR带线耳塞

Can reuse

- Made of TPR

- 3- level pine tree shape to reduce noise.

- Have connect line, store in box for each pair. 

- Noice reduction stardard: SNR 29 dB according to CE CE EN 352-2, NRR 25 dB according to ANSI S3.19