Noise reduction rating +NRR22
• Intuitive one-button operation
• Rechargeable, high battery life
• 2 sound effects (indoor and outdoor)
• Power, low battery prompt
• Automatic shutoff after charging, automatic shutdown after 2 hours standby
• Portable, comfortable and compatible
• Anti-lost silicone Retention cord
• 3 sizes of earpieces cover and eartips
• The included data cable can be used for charging
• IPX-4 water resistance