Feature: 1. Rich Functionality: Supports analog and coaxial high definition AHD, CVI, TVI cameras, with support for resolutions up to 4K. It enables video, sound, and power 3 in 1 transmission to meet various scene requirements. 2. Sturdy: Made from ABS material, the housing effectively protects the internal components. The aluminum alloy interface provides durability, and extended lifespan. 3. Stable Transmission Performance: Transmits PAL, NTSC, SECAM composite video signals without the need for additional power, effectively resisting common mode interference for stable and strong signal transmission. 4. Convenient to Use: Features a spring type terminal design for quick and easy installation. The terminal eliminates the need for screws, providing a comfortable grip and easy installation with strong wire pressure. 5. Wide Application: Suitable for various recorders, security cameras, switches, etc., and can be applied in shopping malls, hospitals, companies, parking lots, city streets, residential buildings, and more. Specification: Item Type: Video Balun Material: ABS, Aluminum Alloy Weight: Approx. 83g / 2.9oz Supported Resolution: 4K (Maximum) Transmission Distance: 300m / 984.3ft (Not Exceeding). Package List: 2 x Video Balun