Accsoon CoMo SE 1H4R Full Duplex 2.4GHz Wireless Intercom Kit - 1 Host 4 RemoteThe Accsoon CoMo SE is a 2. 4GHz full duplex wireless intercom system, engineered for seamless communication with a range of up to 1312ft(400m). It supports up to 5 users to communicate together, ensuring reliable and efficient coordination in diverse applications. With the advance d ENC (Environment Noise Cancellation) and 30+ hours of noise free communication, Accsoon CoMo SE is professional in dependable, long lasting performance. Up to 400m