1)Funcction :Wireless Anti-lost alarm with the smallest receiver and transmitter. Stable working distance.Smallest anti-lost alarm to protect the mobile phone, both the transmitter and receiver are smallest in this field. Power cosumption is the lowest in the market.Can be also used for the child/wallet/keychain/pet. 2)Specification :no radialization 1-1 matching, no false alarm Beep and vibrate to alarm Working distance is 25-30 meters,Transmitter current : 1.2MA , Receiver current : 0.8MA ,Warning current : 20MA ,Temperature :15-70 Humidity : 90 ,Frequency : 433.92MHZ
