Headphones penetrating concrete sound clear
Eavesdropping device through concrete wall, clear sound. Products suitable for the work of security, police, detective ... Compact size, the product uses a built-in rechargeable battery very handy. Not recommended for bad use.
When placing the device close to the wall, door, window, ... will help hear the sound on the other side of the wall. Support for detectives and police on duty.
When placing the device close to the wall, door, window, ... will help hear the sound on the other side of the wall
Support for detectives and police on duty
Use a Lion - Lithium rechargeable battery for a long time on each full charge
With 220V charger and USB charging
Compact compact size handy
Full set includes: phone, headset, charger
Warranty 12 months
Good prices for agents.
Need to cooperate with distribution agents nationwide.
Delivery and collecting money you request in 64 provinces and cities nationwide