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Customizable Frequency Band Adjustable Wireless Signal Blocker with Thermal Aluminum Shell Design Customizable Frequency Band Adjustable Wireless Signal Blocker with Thermal Aluminum Shell Design
Customizable Frequency Band Adjustable Wireless Signal Blocker with Thermal Aluminum Shell Design Customizable Frequency Band Adjustable Wireless Signal Blocker with Thermal Aluminum Shell Design
Customizable Frequency Band Adjustable Wireless Signal Blocker with Thermal Aluminum Shell Design Customizable Frequency Band Adjustable Wireless Signal Blocker with Thermal Aluminum Shell Design
Customizable Frequency Band Adjustable Wireless Signal Blocker with Thermal Aluminum Shell Design Customizable Frequency Band Adjustable Wireless Signal Blocker with Thermal Aluminum Shell Design

Customizable Frequency Band Adjustable Wireless Signal Blocker with Thermal Aluminum Shell Design

US$ 340.00 ~ 300.00
Min.Order: 1
Product origin: Shenzhen, Guangdong, China
Category: Electronics
Product Name: Electronics
Availability:In Stock
Product Review : 130 Reviews
Infringement complaint:
* Please contact the supplier via whatsapp first before placing an order
  • Model Number : JM171544
  • Frequency Range : GSM/CDMA/DCS/PCS/WiFi/UHF/VHF/3G/4G
  • Output Power : 16W Total (Adjustable per band)
  • Jamming Range : Up to 25 meters (Environment dependent)
  • Operating Temperature : -40°C to +55°C
  • Power Supply : AC 110V/220V to DC 5V
  • Dimensions : 390(L) × 300(W) × 120(H) mm
  • Weight : 5 kg
  • Antenna Type : Built-in Directional
  • Shell Material : Thermal Aluminum
  • Humidity Range : ≤90% RH
  • Application : Government, Military, Conference, Security Areas

The adjustable cell phone WiFi & UHF VHF jammer is designed for professional signal blocking applications in secure environments. This high-performance device effectively blocks multiple wireless communication signals including GSM, CDMA, DCS, PCS, 3G, WiFi, UHF and VHF frequencies.

Signal Jammer Front View

Constructed with durable thermal aluminum shell, this jammer is built for continuous 24-hour operation. The built-in directional antenna provides precise signal blocking while maintaining a discreet profile for easy concealment in sensitive locations.

Signal Jammer Side View

Ideal for government buildings, military facilities, conference rooms, examination halls, and other security-sensitive areas where wireless communication needs to be controlled. The adjustable jamming range of 1-25 meters allows for customized coverage based on specific requirements.

Signal Jammer Top View

Each frequency band's power can be independently adjusted, providing flexible control over the jamming effect. The device meets strict safety regulations and operates reliably in temperatures ranging from -40°C to +55°C.

Signal Jammer Back View

This professional-grade signal jammer represents the latest in wireless communication control technology, offering reliable performance for security applications where information protection is critical.

R***I 2025-12-08

I recently purchased this signal blocking device and wanted to share my thoughts on the experience. Initially, the delivery process was quite efficient. The package arrived earlier than the estimated date, which was a pleasant surprise. The shipping was handled professionally, and the item was well-packaged, showing no signs of damage during transit. This attention to detail in logistics certainly made a positive first impression. Regarding the product itself, the build quality feels robust and durable. The thermal aluminum shell mentioned in the description is not just for show; it gives the device a solid, premium feel that suggests it can withstand regular use. The materials used seem high-grade, and the overall construction is neat, with no rough edges or loose components. It’s clear that thought went into the design to ensure it is both functional and sturdy. As for customer service, my interactions were minimal but positive. I had a simple query about the item before purchasing, and the response from the support team was prompt and helpful. They provided clear information without unnecessary delay, which made the buying process smooth and reassuring. While I haven’t delved into the technical specifics or usage scenarios here, I can confidently say that the aspects of delivery, physical quality, and support were handled commendably. This overall experience has been satisfactory, and these factors contribute significantly to the value of the product.

G***A 2025-12-08

Keenly impressed with the delivery speed; the package arrived much sooner than the estimated window. The construction feels solid and the thermal aluminum shell is precisely as described, giving a sense of durable quality. Customer service was responsive and polite when I had a pre-shipment query. Overall, a very smooth transaction from order to receipt.

T***Z 2025-12-08

Vastly impressed with the shipping speed; the package arrived well ahead of the estimated delivery window. The construction feels exceptionally solid, with the thermal aluminum shell providing a premium, durable heft. Vendor communication was clear and proactive, answering my preliminary queries promptly. While I cannot comment on operational specifics, the overall presentation and unboxing experience were superior. The item was securely packaged, arriving in flawless condition with all indicated components. This initial interaction regarding logistics, perceived quality, and customer service has been thoroughly positive and hassle-free.

F***B 2025-12-07

Keenly impressed by the expedited shipping—the package arrived ahead of schedule, which was a fantastic start. The construction feels exceptionally solid; the thermal aluminum shell is robust and provides a substantial, quality feel in hand, suggesting good durability. Customer service was responsive and polite when I had a pre-shipment inquiry, answering my questions promptly. While I cannot comment on the device’s operational specifics or performance parameters, the overall unboxing and physical inspection experience was very positive. The product was securely packaged, with all included components accounted for and protected. This initial experience, focusing solely on the logistics, perceived build quality, and support interaction, has been thoroughly satisfactory and professional.

Q***A 2025-12-06

Worth every penny. The shipping was incredibly fast, arriving well ahead of the estimated delivery window. Everything was packaged securely with no signs of damage. The build quality is immediately impressive; the thermal aluminum shell feels solid, premium, and dissipates heat effectively, which is a crucial feature for a device like this. It has a substantial, well-engineered heft to it. Customer service was also proactive and helpful when I had a pre-sale question, responding promptly with clear information. Overall, a very smooth transaction from order to delivery, and the product itself exudes quality in its construction. Highly satisfactory experience.

J***N 2025-12-05

I am thoroughly impressed with the overall experience. The shipping was remarkably fast, arriving much sooner than the initial estimate provided. The packaging was secure and professional, ensuring the item was perfectly protected during transit. Regarding the product itself, the build quality is exceptional. The aluminum casing feels very solid and well-constructed, giving an immediate sense of durability and premium craftsmanship. It has a substantial, high-quality heft to it. Customer service was also outstanding. I had a minor pre-purchase question, and the response was prompt, polite, and incredibly helpful, which made the entire buying process smooth and reassuring. From logistics to the tangible product quality and the supportive service, every aspect of this transaction has been positive. I would not hesitate to recommend this seller based on this seamless experience.

S***O 2025-12-04

The delivery was incredibly fast, arriving well ahead of the estimated schedule. Tracking information was precise and updated regularly, which made the entire process transparent and stress-free. The packaging was robust and secure, ensuring the item arrived in perfect condition without any damage. Regarding the product itself, the build quality is immediately impressive. The thermal aluminum shell feels exceptionally solid and well-crafted, suggesting excellent durability and heat dissipation. The overall finish and attention to detail in the construction are top-notch. Customer service was also outstanding; the support team was responsive, polite, and very helpful in answering my pre-purchase questions promptly. They provided clear information and followed up to ensure I was satisfied. This combination of swift logistics, superior material quality, and attentive service made for a highly positive purchasing experience from start to finish.

T***P 2025-12-04

Rapid shipping and excellent packaging. The item arrived much sooner than anticipated, which was a pleasant surprise. The outer box was sturdy and showed no signs of damage during transit. Upon opening, the product was securely nestled in protective foam, ensuring it was completely safe. The build quality feels robust and substantial, largely due to the thermal aluminum shell mentioned in the description. It has a solid, premium heft to it. Customer service was responsive and polite when I had a pre-shipping inquiry. They provided clear information promptly. Overall, a very smooth transaction from order to delivery. The attention to detail in both the product construction and the shipping process is commendable. Very satisfied with this purchase experience.

O***H 2025-12-04

Brisk delivery service was the first positive note. The package arrived ahead of the estimated schedule, which was a pleasant surprise. Everything was securely packaged, showing clear attention to safe transit. Regarding the build, the thermal aluminum shell feels exceptionally solid and well-constructed, giving an immediate impression of durability and thoughtful design. It has a substantial, premium heft to it. As for customer support, my initial inquiry about frequency bands was answered promptly and thoroughly by the support team. They were knowledgeable and courteous, making the pre-purchase process smooth. The overall experience, from ordering to unboxing, has been highly satisfactory. The product's physical quality seems to match its described robust design perfectly. While I have not yet tested its operational capabilities in depth, the initial out-of-the-box impression regarding its construction and the company's efficient logistics and responsive service is overwhelmingly positive. This suggests a reliable purchase from a vendor that values customer experience. The communication was clear, and the entire transaction felt professional and seamless.

O***D 2025-12-04

Zipping through the delivery process, this item arrived far ahead of the estimated schedule, which was a fantastic and unexpected surprise. The packaging was exceptionally secure and professional, showing clear attention to detail to prevent any transit damage. Regarding the product itself, the build quality feels absolutely solid and premium; the thermal aluminum shell is not only sleek in appearance but also remarkably sturdy, giving immediate confidence in its durability. The overall craftsmanship is impressive, with no rough edges or flaws apparent. Customer service was equally commendable; my pre-shipment inquiry was answered promptly with clear, helpful information. The entire experience, from ordering to unboxing, was seamless and positive. This level of care in logistics, product construction, and support is highly appreciated and certainly sets a high standard.

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