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3.5“ Jack Earphone for Old Mobile Phones Nano Magnet Earpiece 108B Voice Audio Transceiver Listening Aid Headphone Transmitting Neck Loop

$9.99 – $29.99
a complete set for exam purpose ,with nano magnet or earpiece for optional .
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337 Battery SR416SW 1.55V Silver Oxide Battery Watch Hearing Aid Single Grain Packing Button Cell for Mini Earpiece

$0.90 – $6.50pcs
Battery lasts for 6-8 hours in earpiece .
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A8 Collar Bluetooth Headset 108B Mini Earpiece Voice Transmitter Hands-free Audio Transceiver Blue-tooth

$44.00 – $59.99
Special exam product . Mini size ,Easy hidden under collar .  Receive voice from mobile phone by Bluetooth ,secretly sending to mini earpiece . only you can hear voice .
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Battery Icon Display Gsm Card Phone VIP Lable Exam Cheating Tool Invisible Earpiece Audio Sender GSM BOX

$44.99 – $63.99

Transparent label for battery information display GSM card ,send converstaion to earpiece in ear . 

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Car Key + Bluetooth Audio Transmitter Inductive Gsm Sender Exam Tool 108B Invisible Earpiece Set

$44.99 – $64.99

Dual Function , by GSM or by Bluetooth to earpiece

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Free of Scan GSM Box Skin Color With 108 Earpiece Invisible Audio Sender Coil

$60.00 – $76.00
With long black wire , which is free of metal scanning 
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Gsm Card Phone Voice Inter-phone Bluetooth Transmitter Hand-Free Audio Sender Exam 108B Invisible Earpiece Set

$49.99 – $64.99

Dual Function , by GSM or by Bluetooth to earpiece

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Lcd Display Gsm Card Phone VIP Lable Cheating Tool Invisible Earpiece Audio Sender Exam

$44.99 – $63.99

Lcd Display for battery information GSM card ,send converstaion to earpiece in ear . 

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Mini Earpiece Skin Bluetooth Headset Voice Transmitter Hands-free Audio Transceiver Blue-tooth Loop

$47.99 – $64.99
Special exam product . Receive voice from mobile phone by bluetooth ,secretly sending to mini earpiece . only you can hear voice .  
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New Gsm Card Phone Voice VIP Hidden Communication Device Hand-Free Audio Sender Exam 108B Earpiece

$45.99 – $59.99

GSM card ,send converstaion to earpiece in ear . 

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RF Nano Magnet Set Working as Wireless Earphone Voice Receiving Headset For Audio Transmitter

$4.80 – $6.00
if you are not familiar with such product ,We kindly beg you not buy!!! RF NANO earpiece for exam transmitter . Does not work alone or directly with mobile phone , must work with special transmitter .
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