We have all sorts of mp3 recorders and usb voice recorders. The battery should operate the unit for 3-6 hours of continuous use depending on the volume level selected.Finding the perfect wholesale voice recorder gadget is child's play on, one of the largest web platforms for wholesale purchasing. The AJ-40 is powered by one rechargeable 9 volt Lithium Ion battery (battery and charger included). For protecting rooms larger than this, we recommend an additional jammer for each 200 sq. The convenient push button control lets you select the level of protection for each situation. The battery should operate the unit for 3-6 hours of continuous use depending on the volume level selected. It also protects against microwave or laser reflection types of eavesdropping devices which monitor the sound waves reflecting off of glass surfaces such as windows. This rechargeable unit is effective against many microphone based eavesdropping and listening devices including bugs, RF audio transmitters, hard-wired microphones, contact microphones and shotgun microphones. Defeat hidden microphones and listening devices. this will also keep voice activated devices active, using up the recording. All the eavesdropper will hear is a loud hissing noise. The sound from the white noise jammer constantly varies in frequency and amplitude. It sounds like random static to your ears but it is a variable oscillating frequency that masks your in person conversations. Keep your private conversations private! The AJ-40 Rechargeable Audio Jammer / White noise generator protects your private room conversations by generating a un-filterable masking sound which desensitizes any near-by microphones. Rechargeable Audio Jammer - White Noise Generator AJ-40 Recharge time should be under 2 hours.NOT TO BE USED WITH ALKALINE BATTERYThe convenient push button control lets you select the level of protection for each situation. of area.The AJ-40 is powered by one rechargeable 9 volt Lithium Ion battery (battery and charger included). It also protects against microwave or laser reflection types of eavesdropping devices which monitor the sound waves reflecting off of glass surfaces such as windows.The convenient push button control lets you select the level of protection for each situation. Rechargeable Audio Jammer - White Noise Generator AJ-40 Rechargeable Audio Jammer - White Noise Generator AJ-40 vendor-unknown Keep your private conversations private! The AJ-40 Rechargeable Audio Jammer / White noise generator protects your private room conversations by generating a un-filterable masking sound which desensitizes any near-by microphones.
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