3M 7100088423. Wearing style: Helmet, Product colour: Black, Attenuation rating (SNR): 31 dB. Connectivity technology: Wired. Battery life (max): 100 h Ports & interfaces Bluetooth: No 3.5 mm connector: Yes 2x 3.5 mm connectors: No 2.5 mm connector: No USB connectivity: No Connectivity technology: Wired Power Battery life (max): 100 h Packaging content Quantity: 1 Features Wearing style: Helmet Product colour: Black Attenuation rating (SNR): 31 dB
