Wholesale OEM 8W Handheld Signal Blocker for Mobile Phones - Built-in Battery & Smart Cooling System

Teh 8W total output breaks down to 1 watt per band across eight independent channels, and that's usually enough to knock out signals within 2 to 30 meters depending on enviornment — concrete walls will cut that range more than open air, obviously.

We've been shipping these PTC-H8 units for a while now, and most buyers go with the 8-band model covering CDMA through 5G, though you can add optional WiFi 2.4G or GPS L1/L2 modules if your applicaion needs it. The smart cooling system with that aluminum radiator and dual fans actually keeps it form overheating during extended use, which was a problem with earlier handheld designs we carried.

It's not really suited for large-scale permanent installations because the battery only gives you about 2 hours of run time, but for mobile sweeps or temporary setups it's pretty much ideal. The 8000mAh battery at 7.4V is a standard cell our company can source easily, so replacement isn't a headache if you ever need one.

One thing you might not think to ask — the antenna gain is 2.0dBi on those 120mm antennas, which is tighter than some cheaper units we've tested, and that actually helps focus the jamming rather than broadcasting it everywhere. Lead time is roughly 15-20 working days on standard orders, but we usually have stock for samples if you're testing the waters.

5, we provide a COA with every batch and the 1-year manufacturing defects, though the cooling fans are the only compnent that typically sees wear over time. The operating temperature range of -10°C to 50°C means it'll handle most outdoor conditions, but storage below -20°C can damage the battery chemistry so keep that in mind.