Gsm Card Phone Voice Inter-phone Bluetooth Transmitter Hand-Free Audio Sender Exam 108B Invisible Earpiece Set

Dual Function : 

1. GSM
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 :

But work in MEXICO by operator Telcel tested by customer.

2. Bluetooth
Receive voice from mobile phones and send to invisible earpiece 

Specifications :
GSM card with bluetooth function ;
Builtin battery 3.7V 950mah , last for 3-4 hours
Size :85*55*7mm 

Instruction :
 
GSM :  insert nano sim card , slide the square button to side  ,3-5 seconds long press the round button on side to turn on device , red led on , then ok to call the number in card . During standby , short press round button , red led indicates ,
 
Bluetooth :  slide the square button to side,
                      Long time round button about 5-8 seconds ,till to red LED flash  , Bluetooth turns on , search bluetooth ID ” paladin ” and connect it .

Shipping Content :
Card ( support micro SIM card ) x 1
USB cable x 1  ;
108b earpiece ( optional )