The RAM® Remote Speaker Microphone with USB-C for ESChat & Zello (RAM-RSM-A04) delivers clear, reliable push-to-talk (PTT) and speaker functionality through a USB-C connection and is designed to support Push-to-Talk over Cellular (PoC). Designed for field operators who prefer an all-in-one PTT solution, this lightweight remote speaker microphone pairs seamlessly with any RAM® tablet or phone docking solution—ideal for public safety, utility services, logistics, delivery fleets, and more.