Wireless mobile phone accesories
Anti-lost alarm with the smallest transmitter.
Stable working distance.

Smallest anti-lost alarm to protect the mobile phone, Power cosumption is the lowest in the market.
Can be also used for the child/wallet/keychain/pet.

* 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