Black wire , Free of metal scanning .
Receive calling from third party , send voice to earpiece which is in in ear ,so you can hear what is talking from caller .
Based on 2G network GSM function , just insert GSM card and work like a mobile phone . transmit voice to invisible earpiece .
Can not make calls ,only receive calls.
It works on most countries which adopt GSM network .
But it was based on China IMEI number ,we can not promise it will 100% work in your country because your country may request special own IMEI for GSM device , if you want try ,you must be cooperative to solve problem
Note :
Not work in USA ,Canada and some American Countries too which use CDMA network .
Not work in Turkey ,India where need special IMEI number ,
Specifications :
GSM 900Mhz card ;
Builtin battery 3.7V 680mah , last for 3-4 hours
Size :54*39*20mm
Shipping Content :
Card ( support standard SIM card ) x 1
USB cable x 1 ;
108b earpiece ( optional )
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