A digital optical fiber coaxial conversion analog audio signal and bluetooth audio receiving transmitter device. | Perfectly solves the limitation of audio equipment and expands the functions of various audio equipment. | Music in the mobile phone can be wirelessly transmitted to the audio equipment. Suitable for TV, recreatioanal machine, CD player, MP3, etc. | Simple to operate and can freely receive and transmit all audio, transmission distance in open area is 15m/49.2ft. | Through this convertor digital audio can be converted into analog audio signals.

High sensitivity with powerful signal reception. | Support for 4.4 and above, for smart TV, and car navigation can be used. | 3 types of antennas, different antennas can be selected according to the environment: 1)A binaural antenna, used in places where the signal is not good. 2)A single pole antenna is used where the signal is good. 3) One is a bracelet antenna, suitable for | Support for phone / tablet / computer. | You can receive free ATSC TV signals anytime, anywhere, even when there's no traffic and no WiFI, you still can watch up to 30 TV programs.

Universal Surveillance Camera Lenses: 2.5mm(Focal Length) IR F1.6 2/3"(190°x190°x190°) 8MP Lens for Security Cameras, with CS Mount. Low distortion, high compatibility. | Manual Aperture(Iris): The aperture of the lens can be fixed and locked, more convenient to use. | Optical Image Stabilization: Prime lens has strong focusing ability, focusing speed and stable image quality, suitable for capturing pictures of moving objects. | 8 Mega Pixel Lens: 8MP high definition lens, provides very accurate focus, delicate images, very slight graininess. | Easy to Use: The lens can be easily mounted and removed without interfering with the mounting and use of other camera accessories.