Feature:1. Quiet Ultrasonic Wave Interference: The voice recording lock can interfere with voice information from any device by mixing high and low frequency audio sources, making the interfered voice information unrecoverable. 2. Anti-recording mobile device: It serves as both an anti-recording device and a portable power bank. Ready to use when turned on, with 3 output directions, 2 modes and 300 degree shielding angle. 3. Eavesdropping and Recording Protection: Our smart recording jammer can prevent your phone from recording, recording on your voice recorder, recording from surveillance and protect your privacy during calls. 4. Remote Control: Comes with a wireless remote control to remotely operate and turn the device on and off, with a control range of 1 to 20 meters. 5. Wide application: The voice recording jammer is suitable for various scenarios such as conference discussions, business interviews, and confidential conversations. . Voice Recording Lock 300 Degree Shielding Angle Smart 3Q . Voice Recording Lock 300 Degree Shielding Angle Smart 3Q Specification:Article Type: Voice Recording Lock Material: plastic Weight: approx. 432 g or 15,2 oz Battery type: 8000 mAh lithium battery (included) Anti-recording sound pressure: 120 dB or 30 cm (max. ) Direction of recording anti: 300 degrees (max. ) Remote control method: 433 wireless remote control, 1-20 meters distance Remote control battery: 160 mAh lithium battery (included) . Voice Recording Lock 300 Degree Shielding Angle Smart 3Q . Voice Recording Lock 300 Degree Shielding Angle Smart 3Q Package List:1 x Voice Recording Lock 1 x USB cable 1 x User Manual 1 x Remote Control . Voice Recording Lock 300 Degree Shielding Angle Smart 3Q . Voice Recording Lock 300 Degree Shielding Angle Smart 3Q