M20 Electronic Earplugs

- Noise reduction ratio +NRR22
- Intuitive one-button operation
- Rechargeable, long battery life
- 2 sound effects (indoor and outdoor)
- Power-on message, low battery
- Automatic shut-off after charging, automatic shut-off after 2 hours of standby
- Portable, comfortable and compatible
- Anti-loss silicone retention cord
- 3 sizes of ear tips and earbud covers
- The included data cable can be used for charging
- IPX-4 water resistance

The product complies with the following standards:

• ANSI S3.19-1974
• EN 352-2: 2002
• EN 352-7: 2002