Fast Shipping + Free Tracking Number , Electronic Anti Lost Personal Guard Safety Security Alarm / With Vibrating / Receiver And Transmitter Anti-lost function . Searching function . Alarm with vibrating . Small size and portable . User can freely safe distance within a wide range (0 - 20 m, vary with the objects to be protected) Transmitter Current 2MA . Receiver Current 5MA Warning Current 70MA . Frequency 433MHZ Transmitter 33 x 28 x 11 mm . Battery CR2032 . Receiver:46 x 38 x 15 mm Package Includes 1 x Red Electronic Anti-lost Personal Guard Safety Security Alarm. with 1 usongs brand USB all in one card reader, 1 random color usongs keychain retractable measuring tape