WL-EW1

• Waterproof Watch Transmitter

  1.Wearable & Waterproof IP65; 
  2. Wireless coding: 1527;
  3.Operating voltage: DC6V, built-in high capacity rechargeable lithium battery 3.7V;
  4.Operating current: 15±3mA;
  5.Range: 500m (open aera);
  6.Operating frequency: 433MHz;
  7.Used as calling button or emergency button;   
  7.Size: 61×41×14mm (Not include watchband)