Rio Rad DR-X600 Dog training.Big LCD display system pet remote control training.100 levels.Option static or vibrate,altered by up & down button.A tone button activates a tone on the collar receiver.This system can be used on 3 receivers (expands-3 dogs). The collar receiver will turn off if it is unused for 4 minutes. Any movement will activate the collar receiver into sb mode.The trans will go into standby mode if there is no operation after 20 seconds & fine off after 2 min waterproof