WH220 11/8/2017 RELATED PRODUCTS ProductsDX Series Digital Wireless SystemsWireless HeadsetsWirelessDX100 Digital Wireless SystemsWireless HeadsetDX121 Digital Wireless SystemsWireless HeadsetDX210 Digital Wireless SystemsWireless HeadsetHeadsets & AccessoriesHeadsetsDX Series All-In-One RELATED MARKETS ProductsDX Series Digital Wireless SystemsWireless HeadsetsWirelessDX100 Digital Wireless SystemsWireless HeadsetDX121 Digital Wireless SystemsWireless HeadsetDX210 Digital Wireless SystemsWireless HeadsetHeadsets & AccessoriesHeadsetsDX Series All-In-One Single- or Two-channel operation 2.4GHz frequency range Hands-free communications 5 kHz wide band audio Single-ear, light-weight design Rugged and reliable Up to 12 hours of battery life