High-quality digital display module , Professional backlight design to improve display clarity(unique in market) , Support hands-free intercom(VOX) , Support max 3000m talking distance , Support intercom via headset (additional headset is required) , Support LED light , Support 8/16/22 Channels, Suite Europe,USA etc global markets , Support 1-99 groups of sub-audio settings , High-quality speakers and clear call quality , Rechargeable battery power supply , Monitor function,Support amplifying the received weak signal, Support button lock function., Support pairing by scanning channel , Product size: H12.5 x W5 x T3cm