talk and train 2 way handheld radio up to 2 mile radius. comes with a handheld and a mini radio that can attach to a collar or can be used like a handheld radio .used to train and call pet .stop a dog from barking.led light for collar use . 38 channels ctcss. vox(voice activated transmission) feature.adjustable squelch function.lcd backlight. channels for handsfree operation..many more features.they are waterproof .come with li-on batteries and chargers earbuds and mic ,belt clip neck strap for controler ,electronic pet collar. new in package with info packs and instructions. i have a few and can be used together up to 14 radios.