Invisible Hidden Wireless 3.5mm AUX Jack Secret Spy in-Ear Earphone Earpiece，Mini Recording Earphone for Mobile Phone Laptop Peripheral

Feature ◆The newest version spy earpiece with smaller in size , consume less power and more clear in sound. ◆Invisible wireless earpiece receives signal by an inductive loop across electromagnetic fields ◆Universal Compatibility. Work with any model of cell phone, MP3 and Radio that accepts 3.5mm jack. ◆Plug and Play. Only need two 9V batteries to power the loop set (not included). ◆Simple Use. Wear and power the loop set, plug your cell phone, carefully put the earpiece into your ear, then you can talk with other people via this system. ◆Comfortable for wearing with an optimum anatomic design. Easy and safe to wear, ◆You can adjust the volume via your cell phone. Package Content 2 x earpiece 1 x loop set + jack (3.5mm) 1 x Magnet for taking out the earpiece (also can work as middle size earpiece) NOTE 1）Please allow slight deviation due to manual measurement. 2）Due to light and screen difference, the item's color may be slightly different from the pictures.