Built-in digital wireless technology including microphone, allows you to take hands-free calls or listen to music via your ear defenders.Easy-access controls enable you to take calls and adjust the volume level.Includes AUX input to allow connection with non-wireless compatible devices.Fitted with adjustable headband for comfort.Supplied with charging cable and AUX cable.Lightweight, yet rugged construction, certified to BS EN 352-1:2020 standard.Hearing protection level in excess of the standard, with an SNR of 29dB.Model No. 9420Built-in digital wireless technology including microphone allows you to take hands-free calls or listen to music via your ear defenders.Easy-access controls enable you to take calls and adjust the volume level.Includes AUX input to allow connection with non-wireless compatible devices.Fitted with adjustable headband for comfort.Supplied with charging cable and AUX cable.Lightweight, yet rugged construction, certified to BS EN 352-1:2020 standard.Hearing protection level in excess of the standard, with an SNR of 29dB.