DEVICE COMPATIBILITY: Designed to work with Sonim XP5s, XP8, XP5plus, and XP10, ensuring seamless communication with these rugged devices. COMFORTABLE & DURABLE C-SWIVEL EARLOOP: This single-wire PTT headset features a sturdy "C" swivel ear loop that rests comfortably on the ear, delivering clear audio. Ideal for shift workers who need to share earpieces, offering both comfort and durability. CRYSTAL-CLEAR COMMUNICATION: Equipped with a noise-reducing microphone and a waterproof PTT button, this headset ensures loud, clear voice transmission even in noisy or wet environments, making it perfect for demanding work conditions. CONVENIENT IN-LINE MICROPHONE: The in-line microphone with an easy-access PTT button offers hands-free convenience, and its hygienic, easy-to-clean design makes it perfect for security, surveillance, and frontline workers who require reliable, shareable communication tools SATISFACTION GUARANTEED – If you are not satisfied with the PTT earpiece, we will refund your entire purchase within 30 days. Klein Electronics offers a 3-year warranty for all their wired PTT audio accessories. DEVICE COMPATIBILITY: Designed to work with Sonim XP5s, XP8, XP5plus, and XP10, ensuring seamless communication with these rugged devices. COMFORTABLE & DURABLE C-SWIVEL EARLOOP: This single-wire PTT headset features a sturdy "C" swivel ear loop that rests comfortably on the ear, delivering clear audio. Ideal for shift workers who need to share earpieces, offering both comfort and durability. CRYSTAL-CLEAR COMMUNICATION: Equipped with a noise-reducing microphone and a waterproof PTT button, this headset ensures loud, clear voice transmission even in noisy or wet environments, making it perfect for demanding work conditions. CONVENIENT IN-LINE MICROPHONE: The in-line microphone with an easy-access PTT button offers hands-free convenience, and its hygienic, easy-to-clean design makes it perfect for security, surveillance, and frontline workers who require reliable, shareable communication tools SATISFACTION GUARANTEED – If you are not satisfied with the PTT earpiece, we will refund your entire purchase within 30 days. Klein Electronics offers a 3-year warranty for all their wired PTT audio accessories.