RF-RB51R/RF-RB51C: 7 * 24H online, 7 * 24H guarded, AloT assisted management services. One click remote assistance, "on call", quickly solve problems. Proactively search for dynamic abnormal parking, always guarding the peace of mind of car owners. Face to face video and voice communication to comprehensively improve service quality. 1.2-meter long-distance code swiping payment, convenient, fast, and enjoy anytime you stop. Support multiple online payments, enjoy the convenience brought by technology, and achieve intelligent human-computer interaction.