Lobo Commander Rechargeable Wireless Remote Dog Training E Collar, with Shock, Vibration & Tone Corrections, for Large, Medium & Small Dogs Free Engraved Pet Tag with Every Order Rechargeable lithium ion batteries never buy batteries again Separate buttons for tone, vibration and shock with 8 levels of adjustment for vibration and shock Train up to 2 dogs from one transmitter- our transmitter can command 2 collars at once Up to 600 yard range you know how fast your pet can run, make sure you have the range to reach them