... , VOX grade setting, Multi channel scan / priority scan function, Voice prompt, Emergency alarm, VHF/UHF handheld FM Radio TK918 Walkie TalkieTK-918Main FunctionOutput power ... functionVOX grade settingMulti channel scan / priority scan functionVoice promptEmergency alarmGroup callChannel name settingTime-out Timer (TOT)Auto keypad lockFM radio receiver functionPC software programmableCable ...