alarm to remind you the lost goods. Master can search Slave in 0~100m. The Master can detect separated distance and guide the direction of Slave via LEDs on Master for tracking. More closer to Slave, more LED lights on Master. Find the slave by Master LED Indecation in 5~100m, by Slave Beep Sound in 0~5m. The Slave adorns with original SWAROVSKI Crystal. Multi-application to Cellular Phone/Note Book/3C products/ Luggage/Bikeetc.
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