Zeadio G Shape Earpiece Headset PTT for Motorola Multipin Walkie Talkie Radio Gp328 Plus Gp338 Plus Gp628 Plus Gp638 Plus Gp629 Plus Gp639 Plus Ptx700 Plus Ptx760 Plus Ptx800 Plus Ptx860 Plus Etc. Excellent for use in police, military, nightclubs, bars, paintball, security,restaurants, hotels, bouncer, warehouses, and noisy environments. Durable and thick cable, designed for tough environment This headset is for Motorola radios that require an oval side mount pin connector with retaining screw