Recommend a paragraph of ultra-thin miniature interphone QR338 (outdoor activities grist)




At present, all sorts of miniature interphone phyletic, but the price, parameters, and quality are uneven. It USES frequency can be divided into: 1; 409mhz section: (mainland free exemption as frequency, such as various MOTOROLA toys type interphone) 2, 462mhz section: (Chinese Taiwan exemption as frequency, generally most for import or export trade products) 0mhz section: thou China amateur frequency, HAM, juyou general chose this paragraph frequency, but very little, in addition to product miniature imported.) this mini interphone, after the first, second generation of development, the first has successfully developed: the third generation miniature interphone. More appropriate tourism, outdoor, mountaineering use! One improvement parts: 1; Battery selecting new high-quality high-energy lithium battery, and the former two generations of lithium battery performance is more superior than; 2. Solved before discharge, unable to deep battery charging defects. 3; Model more halfback, layout more hasten is humanization. 4: (key!) Frequency can be set to give 446mhz amateur shows, suitable for all I quite agree and radio enthusiasts qso use.