We are Shenzhen BTV. Engineering Co., Ltd. based in Shenzhen, China. We are member of TradeKey.com since March, 2012. Our business is related to Telecommunications industry and we specifically deal in video transmitter & transceiver. Please find our product details below: HD wireless mobile video transmitter(mountable. backpack) COFDM modulation & H.264 video compression High definition and long distance transmission Transmitter and receiver can both work movable Lithium battery for power supply lightweight and portable Thank you for taking time to go through our business profile. If there are any questions, inquiries or comments, please feel free to contact us.