Chiloki ZW110 is a wired headset with PTT button to remote control Zello work in the background or screen off on Android phone and iPhone15. The twist lock of earpiece gives easy change and secure at same time. Changeable earpiece helps commercial owners cost saving solving hygiene issue when worker changes by just replace earpiece one without whole unit. Large non-slip PTT provides great tactile feedback even when wearing heavy gloves. Large CLIP design suitable for heavy clothing. Ruggedized strain relief with high durability cable: High quality cable with soft SR (strain relief), provides high product integrity ensuring longer life cycle. Microphone cable: OD 4.0mm swivel tested over 20,000 times (500gw, 180, 30/min); strength 36kgw. Each cable is past production tested for conformance. * Includes 3 sizes of earbuds to suit different ears.