P-28Ultra - Most Powerful Multi-Band all in one Portable Mobile Phone Jammer
 
The P-28Ultra best portable signal jammer is a high-performance, full-band solution designed for professionals seeking reliable protection against unwanted signal intrusion. With its sleek, compact design, this device effectively blocks a broad spectrum of signals, including GSM, 3G/UMT, 4G, 5G cell phones, WiFi 2.4G/5G/6E, GPS L1–L5, UHF, VHF, LOJACK, RC 433/315/868 MHz, LoRa, and FM radio.
Powered by 28 watts of jamming output, the P-28Ultra can neutralize up to 28 frequency bands simultaneously. The high-gain omnidirectional antenna ensures 360° signal coverage, while the DIP switch gives users the flexibility to control each frequency band individually.
 
Engineered for maximum portability, the all in one Jamming device weighs only 4.0 kg and comes with a durable carrying case, making it perfect for field operations, travel, and tactical use. An integrated LCD display shows real-time battery status and signal strength, so you're always in control.
 
To ensure long-term stability and performance, the unit features an advanced cooling system with a high-efficiency aluminum heat sink and four silent built-in fans. 
 
The internal battery delivers up to 80 minutes of continuous operation on a single charge.