AT-3308 Walkie Talkie 4/5W Output Power in-built DCS/CTCSS encode/decoder AT-3308 Walkie TalkieFeatures:1) Working frequency: 136 - 174MHz ... Programming key to set, personalized function8) 500mW audio output9) With 1,500mAh Ni-MH battery, 14h for talking duration10) Compatible ... with American Military Standard MIL-STD810C, D, E tests, such ...