Spy Underwear - GSM based 
Note - This model does not support only 4G sim cards. Example - JIO in India. 
you can use hybrid sims like Airtel
 
FULLY INVISIBLE AND HIDDEN EARPHONES

GSM sim based. No need to keep any mobile phone during use. Perfect for secret two-way communication. talk with anyone from anywhere without getting caught by anyone. 
Please accept our selling terms and conditions before placing any order.



*** The earpiece will be completely hidden in the ear canal thus from outside no one will be able to see the earpiece.  

Parcel contains - 
1 X GSM Underwear 
1 X Electronic Earpiece 
2 X Earpiece cell ( 416 model ) 
1 X charger with cable
 
Cautions - 
Don't use this earpice for longer time. 8 to 9 hrs is maximum use time since it's electromagnetic ways might harm if exposed for longer durations. 
Never sleep with magnetic earpiece in your ear
Do not insert forcefully. Don't push the earpiece as they might harm your ear canal/drum. 
The buyer shall not use the product for any illegal purposes and shouldn't permit anyone to use the product in any kind of unlawful activities. We promote our products for betterment for our lives not to go against law, or humanity.