Garmin PRO 550 Handheld<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Top-mounted selection dial is for Vibration and Stimulation Levels (1-7) </span></li><li><span class="a-list-item"> Green button operates Tone and any compatible accessories， like the Upland Beeper </span></li><li><span class="a-list-item"> -Toggle switch selects which dog is being controlled (up to 3: black， red or blue)-Toggle switch FORECAST(‘M’ and ‘C’ selects stimulation type and ‘A’ is for Accessory </span></li><li><span class="a-list-item"> Upper black button selects ‘medium’ level of stimulation (1-7)， and turns Lights on. -Lower black button selects ‘low’ level of stimulation (1-7)， and turns Lights off. -Pressing both black buttons at same time selects ‘high’ level of stimulation (1-7) </span></li><li><span class="a-list-item"> Includes - PRO 550 handheld， AC adapter， manual </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31lWwOPkNML.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31Qd9J02U5L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31hTvT5llAL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/318YI5iebvL.jpg" noproxy>