Jiangsu Profile
Product List
20236. Original Multi-Channel Cellular Signal Jammer Module for Conference Room Privacy 
[Apr 29, 2026]
[Apr 29, 2026] Product Description Product Description YJM2420B is a wireless signal shielding module dedicated to 2400-2500MHz signal. This module has the advantages of high average output power, good in band flatness, small upper ...
20237. New Fashion Multi-Channel Vehicle-Mounted Signal Jammer Module for Safe House Signal Isolation [Apr 29, 2026]
[Apr 29, 2026] Product Description Product Description YJM2420B is a wireless signal shielding module dedicated to 2400-2500MHz signal. This module has the advantages of high average output power, good in band flatness, small upper ...
20238. Original Omnidirectional Narrowband Power Amplifier Signal Jammer Module for Classroom Signal ... [Apr 29, 2026]
[Apr 29, 2026] Product Description Product Description YJM2420B is a wireless signal shielding module dedicated to 2400-2500MHz signal. This module has the advantages of high average output power, good in band flatness, small upper ...
20239. The New Omnidirectional Fpv Signal Jammer Module for Classroom Signal Control [Apr 29, 2026]
[Apr 29, 2026] Product Description Product Description YJM2420B is a wireless signal shielding module dedicated to 2400-2500MHz signal. This module has the advantages of high average output power, good in band flatness, small upper ...
20240. New Arrivals Lightweight Adaptive Wireless Signal Blocker Jammer Module for Drone Disruption [Apr 29, 2026]
[Apr 29, 2026] Product Description Product Description YJM2420B is a wireless signal shielding module dedicated to 2400-2500MHz signal. This module has the advantages of high average output power, good in band flatness, small upper ...
20241. Selling Real-Time Military-Grade Power Amplifier Signal Jammer Module for Airport No-Communication ... [Apr 29, 2026]
[Apr 29, 2026] Product Description Product Description YJM2420B is a wireless signal shielding module dedicated to 2400-2500MHz signal. This module has the advantages of high average output power, good in band flatness, small upper ...
20242. New Fashion Multi-Channel Vehicle-Mounted Signal Blocker Jammer Module for Laboratory Signal-Free ... [Apr 29, 2026]
[Apr 29, 2026] Product Description Product Description YJM2420B is a wireless signal shielding module dedicated to 2400-2500MHz signal. This module has the advantages of high average output power, good in band flatness, small upper ...
20243. Professional Manufacturer High-Power Lightweight WiFi Signal Jammer Module for Laboratory ... [Apr 29, 2026]
[Apr 29, 2026] Product Description Product Description YJM2420B is a wireless signal shielding module dedicated to 2400-2500MHz signal. This module has the advantages of high average output power, good in band flatness, small upper ...
20244. Bestseller Narrowband Military-Grade Cellular Signal Jammer Module for Exam Hall Cheating Prevention [Apr 29, 2026]
[Apr 29, 2026] Product Description Product Description YJM2420B is a wireless signal shielding module dedicated to 2400-2500MHz signal. This module has the advantages of high average output power, good in band flatness, small upper ...
20245. Bestseller Swept Omnidirectional Military-Grade Signal Blocking Jammer Module for Cinema ... [Apr 28, 2026]
[Apr 28, 2026] Product Description Product Description YJM2420B is a wireless signal shielding module dedicated to 2400-2500MHz signal. This module has the advantages of high average output power, good in band flatness, small upper ...
20246. Best Selling Commercial-Grade Lightweight RF Signal Jammer Module for Government Building Security [Apr 28, 2026]
[Apr 28, 2026] Product Description Product Description YJM2420B is a wireless signal shielding module dedicated to 2400-2500MHz signal. This module has the advantages of high average output power, good in band flatness, small upper ...
20247. Custom Label Interference-Proof Signal Blocking Jammer Module for Classroom Signal Control [Apr 28, 2026]
[Apr 28, 2026] Product Description Product Description YJM2420B is a wireless signal shielding module dedicated to 2400-2500MHz signal. This module has the advantages of high average output power, good in band flatness, small upper ...
20248. New Military-Grade Signal Blocker Jammer Module for Government Building Security [Apr 28, 2026]
[Apr 28, 2026] Product Description Product Description YJM2420B is a wireless signal shielding module dedicated to 2400-2500MHz signal. This module has the advantages of high average output power, good in band flatness, small upper ...
20249. Direct Sales Narrowband Cellular Signal Jammer Module for Safe House Signal Isolation [Apr 28, 2026]
[Apr 28, 2026] Product Description Product Description YJM2420B is a wireless signal shielding module dedicated to 2400-2500MHz signal. This module has the advantages of high average output power, good in band flatness, small upper ...
20250. Custom Label Omnidirectional Multi-Band Signal Jammer Module for VIP Hotel Suite Privacy [Apr 28, 2026]
[Apr 28, 2026] Product Description Product Description YJM2420B is a wireless signal shielding module dedicated to 2400-2500MHz signal. This module has the advantages of high average output power, good in band flatness, small upper ...
