New Wireless 2.4GHz 433MHz Recharged Audio-Intercom System Secure Interphone Handsets Expandable for Warehouse Office home phone

Origin : CN(Origin)Answering Mode : HandheldItem Type : Indoor MachineSize : 27210582mmConnection Type : wirelessMaterial : plasticWaterproof : NoInstallation : Wall MountingPower : DC5VSamrt Home Interface : NoCommunication distance : about 1-8 floors in buildingTransmitting Power : Receive Sensitivity : Air transfer rate : 256KStandby Current : 3.5mAWork current : 400mAUsed for : home, warehouse, officeFrequency : 433MHz public frequency Product Features1. Wireless audio intercom system can support 100 persons intercommunicating at most.2. Using 433MHz public frequency.3. Air transfer rate: 256K .4. Transmitting Power: 5. Strong anti-jamming capability .6. Panel with 10 number buttons, a call button and two indicator lights: power indicator light (red), operating indicator light (green).7. With coding, Giving code, ID setting functions.8. DC5V,or Li-ion battery power supply, Standby Current:3.5mA, Work current:400mA.9. Communication distance: about 1-8 floors in building. General Operation Charge Connect the plug to power source.Standby status: the intercom always in the receiving signal status, light indicator flashes 4 seconds per time. Calling intercomA: Dial the ID number of the intercom you want to call, then press CALL button to confirm, RED light bright and enter calling status.B: If there is no signal, the calling intercom will sound “di..” 4 times to show no signal and then end calling.C: If have signal then the call is made1). If no answer, it will sound “Du…” 15 times then auto exit calling. But the called intercom can answer the call within one minute. If no answer within one minute, calling will end automatically.2). If someone answer the call, the sound “Du..” will stop, GREEN light on and enter conversation status. Called intercom1) If the called intercom receive signal but no one answer the call, RED light on and stop sounding after two “Ding Dong, then enter standby status after1 minute.2) If someone answered the call, stop sounding and GREEN light on, then enter conversation status.3)If the called intercom is busy, the calling intercom will sound two “Di..” to prompt busy and return to standby status auto. Hang-UpWhen the called intercom hang up, the calling intercom will sound “di..” one time and end the call. The calling intercom can hang up initiatively during conversation to end the call. Press the CALL button again in calling status:The called intercom will only sound "Dingdong" two times when is called, you can repeatedly press the CALL button on the calling intercom to make the called intercom sound "Dingdong" repeatly. Package list:1 * Wireless Interphone1 * Adapter Cable1 * User Manual Note: If you need more audio door phone, you can contact us, we will post a new product link for you.