New never used. Box does have some wear such as residue from price sticker. Unit includes LCD screen. 9 levels of sensitivity. Protection mode for 90 seconds in beep + vibration + shock mode. Uses one 6-volt alkaline battery 4LR44 (included) Versatile for dogs weighing 12-130 lbs. includes two sizes of electrodes for varying dog sizes. Two training modes including one without shock. Smart bark detection technology based on microprocessor. Includes adjustable collar.