select your currency Blue Laser Cross Laser Modules Infrared Laser Modules Green Laser Modules Laser Line Generators Red Laser Modules Green Laser Pointers Green and Red Laser Pointers Laser Aiming Pointers Red Laser Pointers Laser Pointer Pens Underwater Laser Pointers Wireless Presenters Laser Levels Laser Safety Glasses Test and measure devices Business Gifts USB Flash Drive Light Pens Desk Clocks Accessories Batteries	RSP-3 : Cellular Phone Sensor Pen   select your currency US$ 7.50   Afraid of disturbing anyone by the ringing of incoming cellular phone calls? here is your solution: This pen features a red LED light on the top. It will flash when your mobile phone receives a call or detects a wireless radio signal. Batteries included. Full frequency Range: 800MHz~1800MHz Effective Range: max. 2 meters (6 feet )
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