- passing exams or taking tests
- making speech at a meeting or negotiations
- working as a security guard
- playing games or gambling at casino etc.
The invisible earpieces are cordless devices. They are virtually invisibly fits into the ear. It ensures complete covert reception that delivers a whisper from netloop transimitter or wallet transimitter. This enables you to listen to conversations with maximum convenience and discretion. Because of tiny size, the invisible secret service earpieces for maximum listening discretion
in surveillance activities.