When travelling outdoors，the purchase of walkie-talkies is very important. As we all know, the frequency of walkie-talkies is generally divided into U/V（ultra high frequency/very high frequency)range. Due to different frequencies, the former has strong penetrating power and is suitable for use in mountains, forests and cities, while the latter has a long transmission distance and is suitable for use in open seas, Gobi, plains and other areas.

In this regard, the senior tour palsuggested that in the field with complex and changeable terrain, when purchasing a walkie-talkie, it is best to choose a dual-band radios to ensure the quality of communication and keep in touch at any time.

In addition, outdoor walkie-talkies also have relatively large requirements for battery life and three defenses (dustproof, waterproof, shockproof), otherwise when you are in the deep mountains, the walkie-talkie is out of power, or it rains suddenly then the walkie-talkie gets wet and can't be used, what a sad thing！Professionals also recommend that you have an extra spare battery when exploring the outdoors.

Finally, if the walkie-talkie also has functions such as alert function, FM radio, flashlight, VOX, SQL(Squelch）etc., it will be the best must-have item for outdoor travel. For example, when you get lost, the radio can provide the latest news of nearby rescuers. Flashlight, can search for dark places to prevent encountering poisonous snakes or dark passages; VOX is more suitable for climbing mountains.