IFWATER USB Camera Module, 0.3MP Super Mini Camera with 1/4" CMOS OV7725 Sensor Image, 45degree Lens 480P@60fps High FPS VGA USB Webcam Supports Most OS, UVC Compliant USB Webcam 45 Degree M7 Lens auspowers_batchthree but it will not affect

but it will not affect mobile phone signal

It is available in two sizes: a handy 2-Ounce

providing optimal torque and nulls mid-range instability

with a large size adjustable headband (and a soft leather pad to reduce the pressure to your head)

IFWATER USB Camera Module, 0.3MP Super Mini Camera with 1/4" CMOS OV7725 Sensor Image, 45degree Lens 480P@60fps High FPS VGA USB Webcam Supports Most OS, UVC Compliant USB Webcam 45 Degree M7 Lens auspowers_batchthree but it will not affectIFWATER USB Camera Module, 0. 3MP Super Mini Camera with 1 4" CMOS OV7725 Sensor Image, 45degree Lens 480P@60fps High FPS VGA USB Webcam Supports Most OS, UVC Compliant USB Webcam 0. 3MP USB Camera Module, 640x480 VGA 1 4" CMOS OV7725 Senser Micro Video Mini USB Camera Board With Mini M7 45 Degree Lens For Inside Surveillance Specification: Brand: IFWATER Sensor OV7725 Lens Size 1 4 inch Pixel Size 6. 0um X 6. 0um image area 3984 m x 2952 m Max.