GROOVYPETS 1-DOG ALL RECHARGEABLE TRAINER: RECHARGEABLE REMOTE WITH BELT-CLIP AND LANYARD PAIRED WITH RECHARGEABLE COLLAR TO SEND CONTROLLABLE VIBRATION AND SHOCK Rechargeable remote with remote range up to 800 feet. Strong Humane Vibration command for each dog and both dogs(if you get another collar). Shock buttons for each dog;shock levels: Low (L) or High (H). Adjustable strap fits 6-25"/15cm-65cm neck size Remote has compact and lightweight design with lanyard and belt-clip for easy carrying,