2.4G беспроводной цифровой перезвон двери

wireless door chime Function Features 1.Using 2.4G ISM public frequency band: 2402-2483MHz 2. Air transfer rate: 250K 3. Transmitting Power: Less then 20dBm(Less then 100mw), Receive Sensitivity: -100 or less 4. AFH technology, super anti-jamming capability, can share 2.4G band with wireless LAN and bluetooth devices 5. Panel a call key and two indicator lights: power indicator light(red) and operating light(green). 6. With configure Code function 7. Power supply: AC 110/220V, Electric Current: within 200mA 8. Communication distance: more then 500 meters in open land Applicable Scope: 1. Office interoperate 2. Family interoperate 3. Workshop interoperate 4. Access messenger