Here I have 3 purple haze delkim EV plus alarms set up with an Attx receiver and 3 Dongles ready to just switch on and go in perfect working order all have slight used marks etc but does not affect use in any way these will last you for yrs and yrs... All 3 alarms come with delkim black alarm covers also.. Video in picture the ATTX receiver is set on vibrate or you can set it to an ATTX tone.. Any questions please do not hesitate to ask. Thankyou for looking