Get more done with the Klein Valor Remote Speaker Microphone for XP5s and XP8. Reinforced with a rugged overmold design and contoured edges, it's tough enough to take on your hectic workday. A Knowles omni-directional microphone and built-in amplifier work together to deliver up to 115 dB of ultra-loud, ultra-clear audio output. Make a quick call even through thick work gloves using large, easy-to-access Push-To-Talk (PTT) buttons. The Valor RSM securely attaches to your Sonim device's SecureAudio Connector and draws power from the handset no batteries required.