Retevis RT29 2 Way Radios Walkie Talkies Adults Long Range, Heavy Duty Two Way Radios Rechargeable 3200mAh Battery VOX Alarm with IP67 Waterproof Speak Mic, for Construction Site Warehouse(4 Pack) - FA9140EX4-J9131GX4

• RT29 long range heavy duty 2 way radios has strong penetration. Which can easily penetrate buildings. wood and other obstacles and maintain clear and continuous sound quality High gain antenna can greatly enhances your signal transmission and reception range. expand instant communication distance. and antenna has a certain degree of toughness RT29 high power radios are specifically designed for large commercial environments. channels are pre-set with CTCSS DCS to reduce unnecessary transmissions and therefore cannot talk directly to other brands of radios. if you need to talk to other brand walkie talkies. please contact us via Amazon mail. we will offer firmware for you Sturdy durable body design. dust proof and drop proof for long use time. meet the military standards. can withstand 2-meter drop Built in 3200 mAh large lithium battery capacity has a long battery life. which can be used continuously for more than 12 hours. and the standby time is up to 250 hours. power saving mode can provide you with a longer use time in the work environment The eye catching bright orange design has strong recognition. the emergency alarm will sound an alarm and notify your teammates to provide timely assistance when you are in danger 50 Non-standard CTCSS and 232 DCS can provide clear call and crystal voice in noisy workplace.16 channels has safe calls to avoid unnecessary chat VOX function make hands free operation. which free your hands when you are busy at work 0-9 level squelch can reduce noise in the working environment. which provide you with clear and true crystal sound quality IP67 waterproof shoulder speaker and microphone provide clear audio communication in bad outdoor weather. suitable for outdoor work such as construction sites. highway maintenance