?Bluetooth 5.3
?Level dependent function for environmental listening, limited to 82dBA
?Background noise-reducing microphone for clear calls in loud environments
?Hear the surrounding sound when use Bluetooth
?Three functional modes
?Six Volume levels for listening
?4 hour auto shut-off
?Rechargeable battery or AAA compatible
?Battery up to 15 hours (Bluetooth)- 40 hours (Noise Reduction)
?Memory foam ear cushions
?Ultra-lightweight headband
