Import Cell Phone Jammer (800mhz-2400mhz) — Buy in Bulk from Supplier in China

The SK-4 Cell Phone Jammer from Beijing Signal Knight Technology And Trade Co. Ltd. is a portable signal-blocking device designed to disrupt cellular communications within the 800MHz to 2400MHz frequency range. This range covers most 2G, 3G and 4G networks, making it effective for environments where confidentiality is critical. The jammer’s compact and lightweight design allows for easy deployment in temporary or mobile setups.

The unit typically operates with a power output of 10W to 20W, providing a standard effective jamming radius of 10 to 30 metres, depending on local signal strength and environmental factors. It is usually powered by a 12V DC source, with a typical operational duration of 2 to 4 hours on a fully charged battery. The housing is often constructed from aluminium or ABS plastic for durability, while the internal components include RF modules and cooling systems to maintain performance.

Government agencies, military installations and corporate facilities are the primary users of this jammer, as it is intended for controlled environments where unauthorised communication poses a security risk. The device is not intended for use in public spaces where it may violate telecommunications regulations. Buyers should confirm the exact frequency coverage, power output and compliance certifications with Beijing Signal Knight Technology And Trade Co. Ltd., as these details are critical for legal and operational use.

Beijing Signal Knight Technology And Trade Co. Ltd. is located in Chaoyang District, Beijing, with its address at A-01C, No.3 Chaoting Apt. 8 Furong St. The company operates as an imported-tier supplier, indicating a focus on international trade. Its harbor trust tier suggests a baseline verification level, though its response rate and average response hours are currently listed as zero, which may indicate limited recent engagement.

The supplier specialises in signal jamming and information security devices, with the SK-4 representing one of its products for controlled environments. No additional details about the company’s production capacity, certifications or client base are provided in the available profile. Buyers should directly verify its compliance with telecommunications regulations and quality standards before proceeding with an order.