DEVICE COMPATIBILITY: Specifically designed for Sonim XP5s, XP8, XP5plus, and XP10 devices, this Klein Electronics push-to-talk headset guarantees reliable communication for professionals in demanding environments. STAY INFORMED & PROFESSIONAL: The innovative split wire design allows you to comfortably wear the earpiece with cables neatly tucked under your uniform, maintaining a polished look without sacrificing effective communication. IN-LINE PTT BUTTON: This PTT earpiece features an integrated housing that combines the Thumb Push-to-Talk (PTT) button and microphone, along with a quick-disconnect acoustic audio tube and a rugged audio connector with a secure screw for durability. CRYSTAL CLEAR COMMUNICATION: Equipped with a noise-reducing microphone, this PTT earpiece headset ensures loud and clear voice transmission, allowing you to stay connected even in noisy environments. Perfect for security, surveillance, and frontline workers. BALANCED ARMATURE SPEAKER SPECIFICATIONS: Sensitivity @ 1k Hz (dB SPL) - 108, DC Resistance (Ohmns) - 92, Impedance @ 500 Hz (Ohms) – 200 From a complete line of 2-way radios and accessories, to a full suite of P.O.C. Push-To-Talk custom accessories and charger solutions, we have the solution you need. With in-house firmware and electrical engineers, we smoothly integrate HW and SW into rugged, professional products. Tenure is an average of 15+ years, with several key people being on board for 18-20 years, making our process experienced, agile and easy to work with. From our brands to yours, Klein Electronics is your partner of choice. We are your full service company from OEM and ODM Design, Development, and Distribution. If you have any issues with your order please contact us right away so that we can make sure you walk away a happy customer.