Klein Electronics VALOR Remote Speaker Microphone (RSM) has a built-in amplifier for ultra-loud audio, tested to deliver 120dB output. Klein custom designed the VALOR RSM to reliably connect to Sonim's SecureAudio Connector on the XP5s and XP8 handsets. This allows the VALOR RSM connector to screw into the handsets and draw power. The VALOR RSM has two large, tactile and conveniently located PTT buttons, compatible with heavy work gloves.