The Vip Pro Mini is a high-quality examination bone conduction headset that ensures secret, discreet and effective communication. This hidden earpiece is totally undetectable, thanks to its small size of 1 x 0.8 cm and the dark color of its lid, which resembles the base of the ear. It is distinguished by its high volume and sound quality, suitable for listening to recordings or phone calls, in quiet or noisy environments. Thanks to its induction technology, the sound is transmitted directly from the collar to the earphone, making it possible to hear clearly. The invisible in-ear induction collar is compatible with any device with a 3.5mm jack, whether it is a mobile phone or an MP3 player. It has a built-in mini spy mic that allows two-way communication. Multi-function button makes it easy and convenient to use. This invisible hearing aid for examinations is powered by 337 / SR416SW batteries, with a battery life of approximately 4 hours depending on volume, providing optimal performance for as long as needed. This mobile headset is ideal for those looking for a discreet and effective solution for their secret communications or to face exams with the maximum guarantee of success.