305 NEW Micro Invisible Wireless In-ear Spy Earphone + Neckloop For School Examination Cheat

Product Description
Mini wireless earpiece is a micro-mini wireless inductive receiver that transforms audio signal through electromagnetic induction. These products make covert communication possible when it is inconvenient to expose earpieces. You can communicate with others freely once a network exists when you use a mobile phone. It is widely used in many situations. Such as speech prompts, exam prompts,etc.

Make the covert communication possible when it is inconvenient to expose earpieces.
Support phone call, FM radio, MP3 player, etc
Compatible with Apple iPhones, Android phones, tablets, Kindle, eReaders, and any portable devices with a standard 3.5 mm jack. (Apple iPhones needs lightning to audio adaptor)
Microphone with 1-Button call for clear calls and smartphone control
Note: To avoid possible noise interference when using this device, Keep away from electrical equipment including personal computer consoles, speakers, televisions, refrigerators, etc.

How to use

1.Open the battery door of earpieces and install the battery. Put the earpiece into ear canal and the slight sound of current indicate working order.
2.Put the inductive loop around your neck and connect the inductive loop to the drive equipments (mobile phone, radio) which are attached to or beneath users clothing.

Note:
1. To avoid possible noise interference when using this device, Keep away from electrical equipment including personal computer consoles, speakers, televisions, refrigerators, etc.
2. Limited by the working principle of RF wireless, there will be a slight noise of current when the earphone is working, it is not recommended to use it to listen to music

Specification
Size : 5x7x10mm
Shape : anatomical shape
Receiver type : magnetic/analogue
Maximmum volume : 110dB
Battery : sr416sw/337
Battery Life : 3-5h
Net Weight : 0.8g

Package Content
1 x Earpiece
1 x Loopset
2 x Battery – 337 SR416SW