CooMax Spy Earpiece Bluetooth Hidden Wireless Earphones Invisible Headset Phone Microphone Exam - Mini Secret Headphone Listening Device Hearing Cheating (Spy Vip Pro SuperMini BT Piece)

❮ Invisible earpiece measuring 1.10 x 0.64 cm ❯ The Vip Pro SuperMini earpiece measures 1.10 x 0.64 cm and rests inside the ear canal, where its conical shape and dark finish keep it out of sight from outside. That size is what allows it to be worn through an exam or a presentation without being noticed. ❮ Induction sound with no lead running to the ear ❯ The Bluetooth piece passes the audio across to the earpiece by induction, so nothing is clipped, taped or threaded up to the ear. Volume and clarity are enough for listening to a recording or holding a phone call in a silent room and in a noisy one alike. ❮ Bluetooth pairing with a phone or an MP3 player ❯ The induction piece pairs over Bluetooth with any Bluetooth device, a mobile phone or an MP3 player alike. Phone calls and recordings are both covered, and no visible headset is needed at any point. ❮ Integrated microphone for signals such as knocks ❯ A microphone is built into the Bluetooth piece. It is enough for communication by signals, such as a knock on the desk, so an answer can be sent back without a word being spoken aloud. ❮ 3 hours of piece and 4 hours of earpiece ❯ The Bluetooth piece is recharged with the USB cable supplied and gives roughly 3 hours. The Vip Pro SuperMini earpiece runs on a 337 SR416SW button cell and gives about 4 hours depending on the volume, and two cells come in the box.