Product Description:
- Special pull-back car with secret listening device: easily listen to all the movements.
- High-sensitivity metal probe: equipped with earphones.
- Complete functions: charging hole, earphone hole, switch knob are located on the top.
- Easy to operate, attaches snugly to doors, windows or walls.
- Ability to make sounds from wood/brick walls, windows, doors or armor plates.
- High sensitivity detectors.
- Can be used with voice recorder.
- Current consumption: 10mA
- Battery used: 9v battery
- Measuring element sensitivity: -70db
- Highest audio magnification: 20000X
- Monitoring method: earphones, external speakers can be connected
- Recording method: there is an outlet hole for external recording
- Working temperature: -20ￂﾰ-50ￂﾰ
