LINK EN352 features

Soft, memory foam ear cushions
Ventilated headband
30 SNR (Signal to Noise Ratio) for noise reduction
OSHA-compliant hearing protection
SafeMax™ Technology limits volume to 79 dB
Up to 14 hour run-time with rechargeable lithium-ion battery
Optional AAA battery (3) use for up to 28 hour run-time (not included)
IPX4 sweat and water resistance
Noise-isolating microphone for clear calls in loud environments
Bluetooth 4.2
Siri/Google Voice compatible

Comes with rechargeable lithium-ion battery and micro-USB charging cord.

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