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Wireless Communication Solutions With High Transmission Power

1.Transmissiondistancebetweenhostandextensionintercomupto8km(wecannotachievebynow)

2.Mobileharddisk(wecannotachievebynow).WejustcandoSDorRFcard.

3.Transmissiondistancebetweenhostandextensionintercomis300m,thenthehostintercomisconnectedto mobilephoneby3.5or2.5audioplugcable.Theotherendconnectsanothermobilephonetoaudio communication.Mobilephonedialcornettocalltheothermobilephone.Itcanworkintherangeofmobilephone networkcoverage.Ifyouwanttorecord,youcanaddonerecordertothehostorusemobilephonedirectly.

nstruction:

1.Extensionintercom:handheldintercom(cansupplyleathersheath)

2.Host:includingthreeparts:4-wayhostmodule,phonemodule,recordingmodule,andthreemodulesare connectedtogetherby3.5or2.5audiocable.Oncepoweron,one

phoneautomaticallydialstheotherspecificphonetoestablishcommunication,opentheswitchonthehost,then startrecording.

3.Mobilephone:purchasedonthemarket,asforasitcancall.

4.Workflow:poweronandcommunicate,mobilephoneestablishescommunicationwithextensionsbyhost. Mobilephonescanhearwhatextensionssaid,atthesametime,anyextensionalsohearwhatotherextensions spoketomobilephone.Whencommunicate

opentheswitchonthehost,thenstartrecording.Shutdown,thenstoprecording.AudiofilescanbestoredinSD card/TFcard,ordirectlyusethevoicerecorder.

Features:

1.Communicationdistance::A.Betweenextensionandhost:200m-300matopenarea.

B.Betweenhostandmobilephonecancommunicateintheareaof3GnetworkorGSMnetwork coverage.

3.Powersupply:Extension:3.7-4.2Vrechargeablelithiumbattery.

Host:3.7-4.2Vrechargeablelithiumbattery.