一、北美ng旗下户外专业品牌：longsinten longsinten（中文译名：英腾）是北美军*工巨头ng旗下atd的专业民用户外品牌。longsinten英腾寓意强悍的力量，代表一种自然主义自由精神。它立足巨头强大的技术支持，致力于为每一位普通人制造专业的级户外应用电子设备。 longsinten英腾借助高强度三防技术，开发出军*用三防手机、军*用三防笔记本电脑、军*用三防发光装置等系列产品，并投向专业户外市场，是旅行者不可或缺的至爱装备；运用电子能源技术，开发出一系列户外越野电源装置、级汽车节油装置，广泛应用于户外生存与探险，也被应用于装备越野汽车。其产品longsinten英腾a81高强度三防手机、longsinten英腾i69智能三防手机、longsinten英腾ft50节油器等产品已成为专业户外电子装备市场的产品，享誉。 longsinten is a symbol of strong power. it stands for the free spirit of naturalism. longsinten is manufacturing the military electronic equipments which were applied to outdoor activities. every person can own the equipment and has the special experience as the marine corps who defend the life and win the war in extreme environments. longsinten technologies is belonging to north america military group-northrop grumman (ng). as a professional outdoor brand of ng, longsinten gets substantial supports of military technology from this tycoon. depending on three-proof technique of military, longsinten developed the three-proof phone, the three-proof pc, the three-proof lighting equipment etc.. the products which have become one of the most important outfits of travelers are sold to professional market of outdoor activity all over the world. basing on military energy technique, longsinten developed a series of outdoor power supplies which are applied to outdoor survival and exploration, and can be also used to equip suv. 二、longsinten英腾a81高强度三防手机在市场 北美专业户外三防品牌longsinten自2011年4月在成功推出级三防手机英腾a81（g版）。longsinten英腾a81承袭北美ng的专业高强度三防特征，拥有坚固的防震、防压结构，和ip67级的密封防水/防尘性能，还扩展了内核性能和应用配置，特别适合多雨、潮湿、多尘等异常恶劣环境，因此深受登山、探险等户外运动爱好者以及军事爱好者的青睐，销售扶摇直上。 2011年8月22日，longsinten又在市场正式推出longsinten英腾a81的升级版——c1108版。该升级版本采用全新的美国高通处理器套片，结合北美ng通讯技术，实现了在高强度三防前提下cdma网络和gsm网络的结合，且主板运行速度至少提升3倍，各项专业户外功能更为详尽精准，一举打开了专业高强度三防手机双网同时待机的先河！该产品作为一个革命性产品，甫一亮相便受到全国几十家媒体的关注报道。