Klein Curl Wired PTT Headset for Sonim XP5s, XP8, XP5plus, and XP10

The Klein Curl wired PTT headset (CURL-SO3-WP) brings earpiece audio and hands-free transmit control to Sonim's rugged push-to-talk lineup: the XP5s, XP8, XP5plus, and XP10. Klein Electronics builds accessories for two-way radio and PTT-over-cellular fleets, and the Curl applies that pedigree to Sonim devices with a connector engineered for the phones' rugged accessory ports. Running PTT traffic through a headset changes how a device gets used. The phone stays holstered while the user hears traffic privately through the Curl's earpiece — important in retail, hospitality, security, and healthcare settings where open loudspeaker audio is disruptive or inappropriate. The wired PTT control sits within easy reach, so keying up is a single press without looking at or handling the phone. As a wired accessory, the Curl needs no pairing, charging, or battery management: plug it into the Sonim connector and it works for the whole shift. That simplicity matters at fleet scale, where Bluetooth audio adds a per-device management burden that wired accessories avoid entirely. The headset carries Klein part number CURL-SO3-WP with UPC 096962275242 and is distributed by Social Mobile alongside Sonim enterprise hardware. Listed shipping weight is 1.1 lb. For XP Pro users, Klein offers the same headset with the newer connector as CURL-SO4-WP.