The RX10 Quad Band
Global Gadget's RX10 Quad Band cell phone jammer is a handheld cellphone jammer which works worldwide, according to the manufacturers.
Covering the 800, 900, 1800, 1900, 3G-UMTS and 2.4GHz Bluetooth and Wi-Fi networks, the signal jammer is effective for up to 30 meters. The device's settings allow you to choose which bands you would like to disrupt, and battery life lasts up to one hour.
The handheld jammer costs £139.90 ($224).