• ANSI certified 24 dB noise-reduction rating (NRR)
• 14+ hour run-time with rechargeable lithium-ion battery
• Optional AAA battery (3) use for 28+ hour run-time
• SafeMaxâ„¢ Technology limits volume to 85 dB
• OSHA compliant hearing protection
• Noise isolating microphone for clear calls in loud environments
• Bluetooth 4.2
• Rated IPX4 for sweat and water resistance
• Soft, memory foam ear cushions
• Siri/Google Voice compatible

*Included with ISOtunes LINK: Rechargeable lithium-ion battery, Micro USB charging cord, quick-use guide, and full manual.