Cellphone Signal Blocker To Block Your Student's Cell Phone Signal

Cellphone Signal Blocker To Block Student's Cell Phone Signal. Really suitable for teacher to block cellphone signal at class. This signal blocker has 40 meters range mountable.

This Cellphone Signal Blocker comes with a 40W 100~240V AC Adapter. 4 channel noise emitter with dedicated operational status indicator, with Ultra hi-gain frequency specific antennas and this signal blocker covers the following frequencies:

CDMA: 869~894Mhz
GSM: 925~960Mhz
DCS:1805~1880Mhz
PHS:1900~1990MHz

If you a teacher, you can block all phones at traffic light intersections. In your office, it blocked all phones over a 1400 sq feet.

Cellphone Signal Blocker Specifications details:

Dimensions: 9.84 in x 5.67 in x 2.17 in
Weight: 70.05 oz
Four antennas for four frequencies.
Wall mountable.
Blocks any signal within ~ 10 meters range.
Blocks any but 3G signal ~ 40 meters even with walls.
Range is superior. totally kills the signal of phones.
Smaller would be nice.

What you get if buy this Cellphone Signal Blocker:

Cell Phone Signal Blocker
40W 100~240V AC Adapter

You can buy this Cellphone Signal Blocker for $109.95.