LKAV-3503 is a mini manpack wireless ad-hoc network equipment which supports real time A/V and IP data transmission. Its multi-hop relay ability can largely increase the transmission range. Ad-Hoc network can automatically select path, with strong flexibility, which can be used for multi-unit and multi-department joint transmission. It has strong anti-blocking and anti-interference ability, is very suitable for mobile communication under complex environments. It can be applied to the public security, armed police, fire control, civil air defense, military and other government departments with emergent rescue tasks for real time communicate, coordinate and command.