Wear the keychain with the keys, and put the card in the wallet.
Push the button on the card, you can find your lost keys right away; one card can match 4 or more keychains.
1. Working range: 25-40m outdoors, 18-25m indoors.
2. Size for Card: 8X5X0.38 cm;
3. Size for keychain: 4.4X2.8X1 cm
4. N.w.: Card: 12g
5. Beep to alarm in 75 DB;
6. Wireless technology, frequency: 433.92MHZ
7. Extended battery life: 12 months;
8. Transmitter battery: 2 pieces CR2016 (included);
9. Receiver battery: 1 pieces CR2032 (included)
Push the button "press here" on the card, you can find your keys very easily in your house or office.
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