Product details:

Garmin PRO 550 HandheldItem Condition: NewModel: 010-01202-50Color: BlackProduct Dimension: 2.1 x 1.8 x 8.2Product Information Green button operates Tone and any compatible accessories, like the Upland Beeper -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 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) Includes - PRO 550 handheld, AC adapter, manual The PRO 550 with proven Tri-Tronics technology allows advanced training for the serious professional with easy access to 21 levels of momentary an