Product information and features Pre-programmed 16 Channels Power Output 500mW License Free Tones 50 CTCSS / 105 DCS Crystal Clear Loud Audio High Impact Casing, Compact & Lightweight Long Battery Life (30 hrs on Average use) Channel Announce & Low Battery Alert External Microphone / Speaker Jack Two Functional Side Keys Multi-functions: VOX, VOX sensitivity & delay Scrambler, Call Ring, Emergency Alarm, Priority Scan, Compander, Battery Level Indicator, PTT ID DTMF (Programmable) Channels / Functions Programmable via PC (Optional) Programming Read Password Protected (Optional) External Car / House Antenna Kit (Optional) Compatible to Zartek ZA705 or Pro5 (464 MHz) & Pro8 radio (446 MHz) Approved by ICASA 1 year limited warranty IDEAL for Security use, Factories, Farming, Hotels, Events & Heavy Duty use. Range: (terrain dependent): Indoors: 600m-1.2km Outdoors: 2-6km Elevated line-of-sight: 10-30km Compatible to all license-free radios 446 MHz (8 Freq.) & 464 MHz (5 Freq.): Zartek ZA-748, ZA-725, ZA-705, ZA-708, COM8 & Pro8 Radio (446 MHz) Zartek Pro5 & ZA-200 Radio (Model# 21-1860AF) (464 MHz) INCLUDED ITEMS: ZA-758 Handheld UHF FM Transceiver Rapid Plug-in Charger Adaptor Li-ion Battery Pack 1600mAH Belt Clip Detachable Rubber Antenna Users Manual DEFAULT PROGRAMMING: SIDE KEY 1: MONITOR OPEN SQUELCH SIDE KEY 1: HOLD IN TO CALL SIDE KEY 2: VOX Toggle (Voice Activated Transmit : Hands-Free)