Specifications/Special Features:

• Transmit interruption-code frequency to interrupt and block the signal of wireless camera
• Block wireless audio and video signal effectively, full range of 900.50 to 2,499MHz
• Built-in Li-ion hydrogen battery (900mAh) in small size for easy carry
• Switched on with adapter power supply directly in some fixed place for a long time
• Completely active to block the audio and video signal without detection

External light indicator (optional)