Alldaymall F-879 Wf-501B 395-410Nm UV-Ultraviolet LED Black Light Flashlight with Feature Cat-Dog-Pet Urine Detector 395-410nm UV Flashlight, a must if you have carpet and pets Authenticate oil paintings, antiques and banknotes Check certain rocks/minerals or leaks in machinery or scorpions Small and compact, comes with a nylon wrist lanyard What's in the box: 1 X Flashlight, 1 X 18650 Rechargeable Li-Ion Battery, 1 X Charger