The Hollyland Mars T1000 is ideal for broadcasting, training, meetings, and more. This full-duplex wireless intercom system with four belt pack transceivers allows two-way communication at a range of up to 300m, offering smooth communication between team members. With this full-duplex intercom system, audio transmission starts once you speak, and there is no need to press a button before talking, as is the case for a walkie-talkies. Its full-duplex feature allows communication in both directions, which guarantees efficient and agile team collaboration. It includes a base station, four belt pack transceivers, and five headsets. The base station powers from an included AC power adapter with a 4-pin XLR connector or from optional L-series batteries via the dual-battery plate built into the top of the base station. The base station provides one USB-C and four USB-A ports. The base station and belt packs all come with a HD OLED display, which can display important information including signal strength, remaining battery power, and connection status in real time. So, you can clearly and intuitively understand whether the devices are working properly. The professional noise-cancelling headsets can effectively isolate the ambient noise to ensure carrier-grade audio quality, so that you can easily hear the instructions. The 3.5mm headset jack also allows you to use your everyday headsets and enjoy more choices and flexibility. The USB-C port can be used for firmware upgrade. The USB-A ports can be used to charge 4 belt packs at the same time. Each belt pack can be used for more than 8 hours when it is fully charged.