This is a high-quality combination antenna of Tianlu brand, model XD3-4G, which is produced in Fujian, China. Manufactured with premium materials, this antenna is designed to deliver stable and efficient signal transmission, along with strong flexibility and adaptability, making it well-suited for a wide range of 4G wireless communication scenarios, such as outdoor base stations, industrial networks, and remote area signal coverage. Detailed parameters are listed as follows: Antenna Gain is 3.5dbi, ensuring reliable signal reception and transmission over a reasonable range; Connector Type is N-Female, which is widely compatible with most 4G equipment and ensures secure connection without signal loss; Height is 0.55m (21.65in), featuring a compact and practical design that facilitates easy installation in various spaces; Antenna Frequency covers 698-2700MHz, fully matching the mainstream 4G frequency bands and ensuring broad signal coverage; Impedance is 50ohm, which is the standard impedance for wireless communication equipment, effectively reducing signal reflection and improving transmission efficiency; Color is White, which is not only aesthetically pleasing but also suitable for various outdoor and indoor installation environments; Cable type is RG-58 (optional), allowing customers to choose according to their actual installation needs; Cable Length is 0.3m, providing sufficient flexibility for short-distance connection and installation. With its user-friendly practical design and consistent, reliable performance, this combination antenna is easy to install and operate, and can perfectly meet the diverse 4G wireless communication needs of different users.