Universal Antenna, 2.5 Inch Dual Size, Compatible with M6/M5/M4 Screws, Multi-Device Universal Replacement Antenna for Electronics, Radio, TV, Indoor & Outdoor Use

["Dual Size for Versatile Use: Comes with two common sizes (6.5cm and 9cm) to meet different installation needs and space requirements. Whether you need a compact antenna for small devices or a longer one for better signal reception, this set has you covered, eliminating the need to purchase separate antennas for different equipment","3 Screw Sizes Included: Equipped with M6, M5, and M4 metric screws, which are the most commonly used sizes in electronics, machinery, and daily equipment assembling. No need to buy additional screws separately, ensuring quick and hassle-free installation without compatibility issues","Universal Compatibility: Designed as a universal replacement antenna, it works perfectly with most electronic devices that require an external antenna, such as radios, TVs, Bluetooth devices, routers, and other communication equipment, making it a practical replacement part for damaged or lost antennas","Durable & Reliable Construction: Made of high-quality metal materials, the antenna features excellent corrosion resistance and sturdiness, ensuring long-term stable performance both indoors and outdoors. It can withstand daily wear and tear, temperature changes, and mild weather conditions, providing consistent signal reception","Easy Installation & Wide Application: No complicated tools or professional skills are needed. Simply select the appropriate screw size and antenna length, install it on your device, and start using it immediately. Suitable for home, office, outdoor, and industrial scenarios, meeting various daily and professional use needs"]