
The compact unit sits under or on top of your monitor, and measures how close you are using ultrasonic waves. Start leaning forward and you’ll be chastised with a warning chime, which can thankfully be turned off. The device will also let you know if your head is closer than the recommended 35 – 60cm (13.8 - 23.5-inches) distance from your monitor with a flashing LED. If the LED starts flashing blue then your head is within the moderate visual range, but if it starts flashing red then it has detected you are closer than 35cm and need to straighten up.

The USB Posture Alert Reminder is USB powered and comes with a 149cm USB cable. It is available in black or white, measures 6cm long x 5.5cm wide x 1.5cm thick (2.36 x 2.16 x 0.59-inches), and weighs 120g (4.2oz). It is available for USD$21.99.
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