EDIMAEG Spy earpiece battery life 8 hours with 3.5 mm Wire Neckloop No Amplifier Work in quiet place

others notice your operating mobile-phone or sth like this?? Just Now!
Package/List of Accessories:
1x new A780 A680 CS-205 earpiece skin or black, 9 model you can choose (Only Full model)
2x SR337(416)SW battery (Only Full model)
1x 75 cm External MIC Neckloop with mini clip
1x 3.5-3.5mm adapter, right for any Mobile phone, two-way talk and listen music
1x Operating Manual, if you need.
NOTE: This is an standard sound item, it is OK on many occasions. We manufacture many special accessories include Amplifier Professional kits, you can check it in our store.

PRODUCT DESCRIPTION
The EDIMAEG Neckloop transmits the signal of a Mobile phone into a magnetic field covering either side of the user head. This field can be detected by a wireless EDIMAEG CIC earpiece. The Neckloop is very comfortable to wear and can be easily concealed under clothing. Its magnetic field allows the user total freedom of movement.

Main Features:
Wire connection, connect directly with your mobile phone, and MP3 device(LEAVE MESSAGE when you place order)
To earpiece Max 30cm
Work well talk and music, if your mobile phone have.
Voice dialing available (if your mobile phone have)
earpiece Battery life 3-5 hours
earpiece Standby 10 hours

HOW DOES IT WORKS?
1)Wear earpiece in your Ear canal, ( will have a ZZZZ—very weak a hint sound)
2)Connect with your mobile phone, if isn’t iPhone, maybe need an adapter (include), otherwise No sound or weak sound, please try
3)Wear Neckloop in your neck