Slim cube shape, tiny outer size, entirely concealed in ear canal. SE03S nano in ear is the smallest wireless electro acoustic receiver.
With smallest hidden spy earpiece, you can setup your own covert communication system while secrecy and privacy are of paramount importance. You can use the smallest nano in ear in applications of surveillance, VIP protection, investigation, security guards and so on. No one will notice user is wearing spy nano earphone. Nano earpiece well know by its skin color and bean shape. The main part of earpiece is skin color. You can choose from skin color and black color.