Earmuff with headband, and hi-viz color for increased visibilty. Bluetooth functionality for connection to two devices, which enables both music streaming and voice function. Level dependent surround sound via push to listen button. Voice microphone with noise cancellation. Voice guided system. Long operating time, up to 73 hours. Suitable for working environment with moderate noise level. 2 x rechargeable AA NiMH batteries, charger with USB connector and power supply with USB connector, are included.