Audio Listening Wiretap Device High Accuracy Sound Amplifier Wall Listening Device With Earphone

Feature: 1. High Quality Material: Ear amplifier is made of high quality ABS material, high strength, wear resistant, sturdy and durable. 2. High Sensitivity: Audio listening wiretap device has high sensitivity, clear audio, and you can use the earphone to improve audio quality. 3. Complete Function: With charging hole, earphone hole and upward switch knob. Humanized design, more practical and convenient. 4. Easy Operation: Sound amplifier can be used anywhere, even indoors or in buildings, and has a built?in lithium battery, easy to operate and carry. 5. Application: Audio ear listening device can be used for pipeline side leakage, floor heating detection, water body exploration. Specification: Item Type: Audio Listening Wiretap Device Material: ABSBattery: 3.7V lithium battery 150mah (built-in battery) USB Charging: 5V . Package List: 1 x Audio Listening Wiretap Device1 x Earphone1 x USB Cable