1. 999 groups Keyboard host.
2. 16 charging slot.
3. 4 models of reminding: ring+vibration+LED, Vibration+LED, LED only, Fade-in
4. Receiver power indicator,low battery alert.
5. Support multiple keyboard call the same receivers.
6. The host password protection to prevent error settings.
7. Supper receiving sensitivity.
8. Call range 200m (open space)
9. One key calls all receivers.
10. One-key turn on/off.
11. Charge without heat.
5.Operating frequency: 315/433MHz;
6.Kit of 16pcs receiver;
1.Operating voltage:DC3.7V (rechargeable lithium battery);
3.Standby current: 10±5mA;