Mobile signal jammer price vary depending on their functionality and range. Basic models, which target specific frequencies and cover small areas, typically range from $100 to $300. More advanced jammers, capable of blocking signals across multiple frequencies and larger distances, can cost between $500 and $1,000. High-end devices with extensive coverage and advanced features may exceed $2,000. Despite these price points, using mobile signal jammers is illegal in many regions due to their potential to disrupt emergency communications and critical services. Unauthorized use can result in severe legal consequences and operational issues.