RT9908 two-way window intercom system banks immigration checkpoints suitable for hospitals <ul class="a-un0rdered-list a-vertical a-spacing-mini"> <li class="a-spacing-mini"><span class="a-list-item">Two-way voice transmission; automatic intercom without pressing a button; suitable for two-way communication between hospitals and healthcare departments</span></li> <li class="a-spacing-mini"><span class="a-list-item">Recording output connector; connect to external recording device; automatically detects voice signals; processes during call; no operation required</span></li> <li class="a-spacing-mini"><span class="a-list-item">High-quality speaker; provides clear and natural sound; high-sensitivity microphone with anti-interference function</span></li> <li class="a-spacing-mini"><span class="a-list-item">High-performance speaker; adopts high-performance input and output technology; the sound is loud and clear</span></li> class="a-list-item">Using a dedicated secondary tone processing chip</span></li> <li class="a-spacing-mini"><span class="a-list-item">Optimized design, full metal shell, beautiful appearance; using high-quality materials and components to ensure good signal output</span></li> <li class="a-spacing-mini"><span class="a-list-item">The volume can be adjusted independently; the internal and external volumes can be adjusted separately according to the environment</span></li> </ul>