Professional Bluetooth Hearing Protector

• ANSI-certified 27 dB Noise Reduction Rating (NRR)
• 10 hour music playback and talk time, 240 hour standby time. USB-rechargeable lithium-ion battery
• ISOtunes signature SafeMax™ Technology with 85 dB volume limit
• Bluetooth 4.1 + EDR, compatible with all Bluetooth-enabled devices
• ISOtunes® signature noise suppressing microphone with echo cancellation technology help block steady state noise like engines, mowers, fans, vacuums, and saws for clear calls in loud environments. Isolation for you, cancellation for them
• IP55 dust, sweat and water resistant
• Custom-fit memory wire conforms to ear for stable fit 
• Features aptX® high definition audio playback
• Includes 4 pairs (XS,S,M,L) of heat-activated ISOtunes® TRILOGY™ foam earplugs for optimal sound quality, comfort, and noise isolation. Also includes 1 pair of silicone triple-flange eartips