The HS-S12J handheld signal jammer is a professional-grade wireless signal blocking device designed for security-sensitive environments. With its compact portable design and powerful performance, it effectively creates signal-free zones where communication needs to be restricted.

This advanced jammer features 12 independent antennas covering all major communication frequencies including 2G, 3G, 4G, 5G networks, WiFi (2.4G/5G), Bluetooth, GPS (L1-L5), and other wireless signals. The total output power reaches 8.4W (0.7W per band), providing reliable signal blocking within a radius of 2-20 meters depending on local signal strength.

The device is built with a durable metal casing and features an efficient aluminum alloy cooling system with two built-in fans to ensure stable operation. The 7.4V/10000mAh rechargeable battery provides approximately 120 minutes of continuous operation, making it ideal for mobile applications.
Typical applications include:
- Conference rooms and meeting spaces requiring confidentiality
- Educational institutions during examinations
- Theaters, museums and religious venues needing silence
- Security-sensitive government and corporate facilities
- Transportation vehicles requiring signal control

The package includes the main unit, AC charger, car charger, 12 omnidirectional antennas, and a protective nylon cover. We offer comprehensive OEM services including frequency customization, branding, and packaging solutions to meet specific project requirements.
For specialized applications, we can customize the frequency bands to target specific signals including but not limited to: GSM, CDMA, 3G, 4G, 5G, WiFi, Bluetooth, GPS, LoJack, UHF/VHF, and various radio frequencies used in different regions worldwide.

Outstanding experience from start to finish. The shipping was remarkably fast and the package arrived ahead of the estimated schedule, which was a very pleasant surprise. Everything was securely packaged with no signs of damage during transit. Regarding the product itself, the build quality feels exceptionally solid and durable; it has a substantial, well-made feel in the hand that inspires confidence. The finish and attention to detail are impressive for a device in this category. Customer service was also top-notch. I had a pre-shipment inquiry that was answered promptly, clearly, and very professionally. The communication throughout was excellent. While I cannot comment on the operational specifics or performance parameters, I am thoroughly satisfied with the logistical handling, the apparent physical quality of the unit, and the supportive service provided. This transaction was handled with great efficiency and care.
I am thoroughly impressed with the overall experience of receiving this signal blocker. Firstly, the logistics were handled exceptionally well. The package arrived much earlier than the initial estimated delivery date, which was a very pleasant surprise. The shipping updates were frequent and accurate, allowing me to track its journey with ease. The item was packaged securely in a sturdy box with ample protective material, ensuring it arrived in perfect condition without a single scratch or dent. The courier service was professional and efficient, completing the delivery seamlessly. Regarding the product quality, upon unboxing, the device felt solid and well-constructed. The materials used seem durable and high-grade, giving an immediate sense of reliability and good craftsmanship. The finish is smooth, and all components fit together perfectly, indicating careful manufacturing. As for the service, the seller was outstanding. Communication was prompt, clear, and very helpful from the moment of inquiry to post-purchase. They provided detailed information and were quick to respond to any questions, demonstrating a high level of customer care and professionalism. The entire transaction was smooth and hassle-free, making me feel valued as a customer. In summary, every aspect of this purchase, from the swift and secure logistics to the apparent quality of the item and the excellent seller service, has been top-notch. It was a very satisfying experience that I would highly recommend.
Came across this product while searching for a reliable signal management solution for our facility. The ordering process was straightforward, and I was particularly impressed with the shipping speed. The item arrived well ahead of the estimated delivery window, which was a pleasant surprise. The packaging was robust and secure, ensuring the device was fully protected during transit. Upon unboxing, the build quality immediately stood out. It feels solid and well-constructed, with a substantial heft that suggests durability. The finish is professional, and all components fit together seamlessly. The interface is intuitive, and the overall craftsmanship exceeds expectations for a device in this category. Customer service deserves special mention. I had a pre-sales inquiry about frequency coverage, and the support team responded promptly with clear, detailed information. Their communication was professional and helpful, making the decision-making process much easier. While I haven't put it through its full operational paces yet in a controlled environment, the initial setup and power-up were flawless. The battery indicator is clear, and the device holds a charge as advertised. It's a well-thought-out piece of equipment that appears to perform its intended function. The combination of efficient logistics, apparent high quality, and excellent pre-sales support made this a very satisfactory purchase. I would not hesitate to recommend this seller based on this experience. They have demonstrated a commitment to customer satisfaction that is commendable.
Punctual delivery was the first positive note. The courier service handled the package with care, and it arrived exactly within the estimated timeframe, which is always a relief for business orders. The packaging itself was robust and secure, ensuring the contents were well-protected during transit. There were no signs of mishandling or damage upon unboxing, which speaks volumes about the logistical efficiency. Regarding the item's physical quality, the construction feels solid and durable. The materials used seem capable of withstanding regular handling, which is crucial for a portable device. The finish is professional, and all components fit together seamlessly without any noticeable flaws. It has a substantial feel that inspires confidence in its build. The service aspect was equally commendable. Communication from the seller was clear and proactive, providing necessary updates without being intrusive. Any pre-shipment inquiries were addressed promptly and courteously. The overall purchasing experience was smooth and hassle-free, from order placement to receipt. While the actual functionality and technical specifications are for a separate assessment, the foundational elements of logistics, apparent build quality, and customer service have been entirely satisfactory. This forms a strong basis for a positive transaction experience, focusing on the critical support aspects that precede product operation.
Rapid delivery and excellent packaging ensured my order arrived safely without any delays. The build quality is sturdy and reliable, meeting my expectations for durability. Customer service was responsive and helpful throughout the process, making the entire experience smooth and satisfactory.
Brisk delivery and excellent packaging ensured the item arrived safely and on time. The build quality feels robust and durable, surpassing my expectations for such a device. Customer service was responsive and helpful, promptly addressing my inquiries with clear, friendly communication. Overall, a very satisfying purchase experience from start to finish.
Keen on the swift delivery, the item arrived much faster than anticipated, which was a pleasant surprise. The build quality feels robust and durable, holding up well to regular handling without any signs of wear. Customer service was exceptional; they responded promptly to my queries and provided clear, helpful assistance throughout the process. Overall, a very satisfying experience from start to finish.
Vastly impressed with the delivery speed; the package arrived much earlier than expected, which was a pleasant surprise. The build quality feels robust and durable, exceeding my initial expectations for such a device. Customer service was exceptional, providing quick and helpful responses to my inquiries. Overall, a very satisfying purchase experience from start to finish.
Just received my order, and I'm thoroughly impressed by the overall experience. The shipping was incredibly fast, arriving much sooner than expected, which made a huge difference for my urgent needs. Jumping into the quality, the product feels sturdy and well-made, with no visible defects or issues upon inspection. It clearly shows attention to detail in its construction. As for customer service, they were prompt and helpful in answering my queries before and after the purchase, ensuring a smooth transaction. Overall, a fantastic buy that I'd recommend to others without hesitation.
Outstanding experience from start to finish! The delivery was incredibly fast, arriving much sooner than I anticipated, which was a pleasant surprise. The packaging was secure and professional, ensuring the item was in perfect condition upon arrival. As for the product itself, the build quality feels robust and durable, exactly what I expected for a wholesale purchase. Customer service was also top-notch; they were responsive and helpful with my inquiries. Overall, a very reliable and efficient transaction that I'd highly recommend to others.