This CD417 black direct-connect external antenna utilizes a proven copper tube + spring hybrid radiating structure. It offers high receiving sensitivity and uniform signal radiation, effectively reducing signal loss and significantly enhancing the stability and penetration capability of wireless device signal transmission and reception. Encased in a sleek all-black integrated housing, the antenna is compact and refined in appearance, resistant to wear and impact, and fade-resistant — while also delivering excellent anti-interference and anti-aging performance for stable operation in both indoor and outdoor environments.

Widely compatible with WiFi, Bluetooth, 2.4G IoT devices, industrial control wireless terminals, routers, smart gateways, and various other wireless devices, this antenna is a cost-effective external signal gain solution.