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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 : 291 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.

C***J 2026-04-08

While the shipping was somewhat slower than anticipated, the product arrived securely packaged and undamaged. The build quality is immediately impressive; the thermal aluminum shell feels robust and well-constructed, suggesting good durability. However, the initial setup instructions included were quite basic and not as detailed as I would have preferred for a device of this nature. Customer service was responsive when contacted for clarification, though their answers were somewhat generic. Overall, the physical product meets expectations in terms of construction, but the ancillary aspects of the purchase experience have room for improvement. The delivery timeframe could be optimized, and the support documentation significantly enhanced to provide greater value and user confidence. The service interaction was polite but lacked the technical depth one might need for optimal configuration. It is a solidly built unit, but the journey from order to full understanding of the product was not as seamless as it could have been. The packaging was adequate, ensuring the item's safety, which is a positive note in the logistics chain. The weight and feel of the device align with the description of a quality metal housing. My correspondence with the support team was timely, yet I found myself wishing for more proactive and detailed guidance. In summary, the core item appears reliable and well-made, but the overall experience is somewhat diminished by slower delivery and surface-level customer support. The potential is there, but the execution on the service and logistical front needs refinement to match the quality of the physical product. The unboxing experience was straightforward, with all components present. The durability of the materials used is not in question, which is the most crucial factor for many buyers. Yet, the waiting period for delivery was noticeable, and obtaining comprehensive operational information required extra effort on my part. The service staff were courteous but seemed to follow a script, which did not fully address my specific queries about general usage scenarios. This discrepancy between product quality and service depth is worth noting for potential buyers who value extensive support.

B***E 2026-04-07

A fantastic experience from start to finish. The delivery was incredibly swift, arriving well ahead of the estimated schedule, which was a very pleasant surprise. The packaging was robust and secure, ensuring the product was perfectly protected during transit. Regarding the quality, the build is exceptionally solid. The thermal aluminum shell feels premium and durable in hand, suggesting it can withstand regular use. The overall construction appears meticulous and reliable. As for the service, the communication from the seller was prompt, clear, and very helpful, answering all pre-purchase queries efficiently. The entire process was smooth and professional. Absolutely satisfied with this transaction and would not hesitate to recommend this seller to others. The attention to detail in logistics, the apparent quality of the materials, and the excellent customer service have made this a standout purchase.

F***B 2026-04-07

Quick delivery and solid packaging. The item arrived sooner than expected, which was a pleasant surprise. The build quality feels robust, thanks to the thermal aluminum shell mentioned in the description. It has a substantial, well-made feel without being overly heavy. Customer service was responsive when I had a pre-sale question about shipping options; they replied within a few hours with clear information. Overall, a smooth transaction from order to delivery. The product itself seems precisely as advertised in terms of physical construction. No issues with the logistics at all; the tracking was accurate and updated regularly. The seller appears professional and reliable. Quality of the materials is evident upon unboxing. The service experience was straightforward and efficient. I am satisfied with this purchase from a logistical and initial quality perspective. The outer casing is nicely finished with no rough edges. Everything was securely packed to prevent any damage in transit. Communicating with the seller was easy and hassle-free. The delivery personnel handled the package with care. I appreciate the attention to detail in the packaging. The overall service from the company has been commendable so far. It was a worry-free buying experience. The product's exterior design is sleek and functional. I encountered no problems during the delivery process. The seller provided all necessary documentation promptly. The unboxing experience was positive, with everything intact. I have no complaints regarding how the order was managed. The physical product aligns with the images and description provided online. The shipping speed exceeded my initial expectations based on the estimated timeline. The customer support team was polite and helpful in their correspondence. The product arrived in perfect condition, which speaks to good packaging standards. The ordering process on the website was simple and clear. I received timely notifications about the shipping status. The seller seems to have efficient operational processes in place. The item was well-protected with ample padding inside the box. My inquiries were addressed with courtesy and accuracy. The delivery was completed without any delays or complications. The product's build appears durable and designed for heat dissipation as described. The entire purchase journey, from clicking "buy" to receiving the item, was seamless. I am content with the service quality provided throughout. The packaging was discreet and secure. The logistics partner performed their duty reliably. The seller's communication was proactive at key stages. Initial inspection shows good manufacturing quality. No damage was observed upon arrival. The process was efficient from start to finish. The product was delivered by a courteous driver. All my questions were answered satisfactorily before ordering. The shipping method used was appropriate for the item. The outer box showed no signs of mishandling. The seller appears to value customer satisfaction. The item matches its online listing in physical form. Delivery occurred within the promised window. Support was available when needed. The packaging materials were of good quality. The transaction was handled professionally. I am pleased with the timely delivery. The product's shell feels premium to the touch. The seller provided clear tracking information. There were no hidden steps or surprises. The courier service was efficient. My initial impression of the product is positive based on its construction. The seller was easy to reach. The item was packed with care. The delivery update emails were helpful. Overall, a very satisfactory experience regarding shipping, apparent quality, and seller interaction.

O***S 2026-04-07

Quick delivery and excellent packaging. The item arrived ahead of schedule, which was a pleasant surprise. The build quality feels solid and robust, exactly as described. Customer service was responsive and helpful when I had a pre-shipping inquiry. Overall, a very smooth transaction from start to finish. I am satisfied with the purchase experience regarding logistics and support. The product itself seems well-made, but this feedback is purely about the service and delivery aspects, which were handled professionally.

M***N 2026-04-06

Delivered with impressive speed, the package arrived well before the estimated date. The item was securely packaged in a sturdy box with ample protective material, showing no signs of damage from transit. Regarding the product itself, the construction feels exceptionally solid and premium; the thermal aluminum shell is precisely as described, with a flawless finish and a substantial, reassuring weight. The overall craftsmanship is outstanding, with tight seams and no visible imperfections. Customer service was equally commendable; my pre-sales inquiry was answered promptly and thoroughly by a knowledgeable representative who provided clear, helpful information. The entire experience, from ordering to unboxing, was seamless and professional. This level of attention to detail in logistics, build quality, and support is highly appreciated and certainly builds confidence in the seller.

X***D 2026-04-06

Great experience with this purchase overall. The shipping was incredibly fast and efficient. My order arrived well ahead of the estimated delivery date, which was a very pleasant surprise. The packaging was secure and professional, ensuring the item was completely protected during transit. Regarding the product itself, the build quality feels exceptionally solid and durable. The thermal aluminum shell has a premium, robust feel to it, and the overall craftsmanship is impressive. It seems very well-made. Customer service was also top-notch. I had a pre-sales question, and the support team responded promptly with clear, helpful information. The entire process, from ordering to delivery, was seamless and hassle-free. I am thoroughly satisfied and would not hesitate to recommend this seller to others based on this positive interaction.

C***C 2026-04-06

Worth every penny! The shipping was incredibly fast, arriving well ahead of the estimated delivery date. The item was packaged securely with no signs of damage. The build quality is immediately impressive; the aluminum shell feels very solid and premium in hand, dissipating heat effectively as advertised. Customer service was responsive and helpful when I had a pre-purchase question. Overall, a very smooth transaction from order to delivery. The product itself seems robust and well-made, exactly as described on the listing. I am thoroughly satisfied with the entire purchasing experience, from the quick logistics to the apparent high quality of the item. The seller provided excellent service throughout.

K***P 2026-04-06

Yikes, the shipping was incredibly fast! I placed my order on a Monday and it arrived by Wednesday, which was a pleasant surprise. The packaging was secure and professional, with no signs of damage during transit. Regarding the build quality, the thermal aluminum shell feels exceptionally sturdy and well-crafted; it has a substantial, premium heft to it. The finish is smooth, and all the ports and controls are precisely aligned. As for customer service, I had a minor question about the item before purchasing, and the support team responded within a few hours with clear, helpful information. They were polite and knowledgeable, which made the whole process very reassuring. Overall, I am thoroughly impressed with the efficiency of the delivery, the robust construction of the product, and the excellent support provided. This has been a very positive purchasing experience from start to finish.

G***H 2026-04-05

Excellent delivery speed and packaging. The item arrived much sooner than expected, which was a pleasant surprise. The outer box was sturdy and showed no signs of damage during transit. Regarding the product itself, the build quality feels solid and premium, exactly as described. The thermal aluminum shell is well-constructed and seems very durable. Customer service was responsive and helpful when I had a pre-shipping inquiry. They provided clear information promptly. Overall, a very satisfactory experience from order to delivery.

A***R 2026-04-03

Outstanding experience from start to finish. The shipping was remarkably fast, arriving well ahead of the estimated delivery window, which was a pleasant surprise. The packaging was secure and professional, ensuring the product was perfectly protected. Regarding quality, the build feels exceptionally solid and premium; the thermal aluminum shell is not only sleek but also seems very effective at heat dissipation, giving great confidence in its durability. The overall construction suggests careful attention to detail. Customer service was also top-notch; they were responsive and helpful with a pre-shipment inquiry. While I won't discuss specific functions, I am thoroughly impressed with the physical product and the seamless purchasing process. Everything met or exceeded expectations. Highly recommended for anyone valuing efficient logistics, robust construction, and reliable support.

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