Check the listing for details. Inductive Neckloop Wireless Hidden Secret Mini Earpiece For Mobile Phone. Color: As The Picture Show, Condition: New. Listed at 32.33 USD. This amplified neckloop transmitter brings you the affordable covert communication system. 3watt amplifier sends powerfull inductive signals to all kinds of wireless invisible earpieces in the market. You can turn the turnplate and control output sound.It creates more power than any other transmitters and uses it to drive even the magnetic earpieces. When using with regular wireless earpieces you will get longer transmission distance and louder sounds. Two colors are available, black and skin.An induction wire neckloop transmits audio signals to a wireless earpiece by a magnetic field. An induction neckloop should be plugged into the audio output of a mobile phone, MP3 player or iPod. The current flowing in the neckloop produces a magnetic field which transmits the sound wirelessly to the earpiece in your ear.Feature:*100% new and high quality.*Compact design and slim size. Hidden indicators.*Anti detector function. Turn off power to avoid detector and keep conversation active.*Soft TEP cable loop great for long time operation.*Extreme 3 watt output power, volume is adjustable.*Effective inductive cable loop.*Applicable to all kinds of wireless invisible earpieces.*Build-in high sensitive 38dB gain microphone.*Optimised designed power switch.*Turn off power to avoid earpiece detector, and phone conversation is still online.*Simply press the round answer button to receive phone calls.*Hidden power and recharge indicator is in right side panel.*4 hours hearing time and much longer time for talking.*High capacity 230mah rechargeable lithium battery.*Each pack includes recharge cable and USB charger.*Completely invisible in ear canal*Cheap price. Great for build low-cost covert communication system.*Mini size and optimum anatomic design*Build-in powerful audio amplifier.*Output loud sounds.Operation Guidance1) Firstly you need to have one piece wireless invisible earpiece. Load battery and wear earpiece into ear canal.2) Connect amplified phone neckloop to mobile phone or mp3 player same as use regular earphone headset. Turn on power in amplified phone neckloop. Play music or make a phone call, you will hear voices in earpiece and talk with partner.Package includes:1 x 3.5 mm Jack amplified neckloop1 x Wireless invisible earpiece2 x Battery for earpiece