Toughstyâ„¢ Sound Pickup Monitor Listening Device Wall Ear Audio Bug with FM Radio Transmit

Key Features:

High Sensitive Sound Pickup
FM Radio Transmitting Function
4Ch Audio Frequencies: A (200MHz) B (800MHz) C (1200MHz) D (partition bug monitoring)
Sensitivity: -70db
Audio Amplifier: 20000 times in max
FM Radio Transmitting Frequency: 100M
Li-ion Rechargeable Battery Built-in
Ouput Battery Power Voltage: 3.7V
Charging Voltage: DC 5V
Detecting Sensitivity: -70db
Penetrability: Cement Wall, Steel Wall, Iron Wall, Glass or Air Brick
Answering Patterns: Headphones, Recording, Wireless FM Transmit
Package Weight: 882g