... , child, 2.Locate your forgettable article quickly. Feature for remote key finder:1) 1 Transmitter with one button and 4receivers2) Locates ... articles quickly (such as key)3) Protects against children, pets at home or supermarket, purse or baggage, TV remotes, PDA, eyeglasses, and ... A27, 12V (transmitter)9) Battery life: 3-6 months Remote key finder