Peltor LiteCom Plus radio system 204101, communication solution for Protos Integral safety helmets, dynamic microphone, built-in radio module for communication with several participants, equipped with loudspeakers and microphone for voice recording, electronic hearing protection with controlled playback of external noise via two external microphones, supports two-way communication as with Radio or telephone applications required, contact via license-free PMR446 band or on dedicated channels in the 70cm band, compatible with other analogue radios in the same band or channel, noise reduction 33dBA, rechargeable Li-Ion batteries and charger included