-Product Introduction- This device automatically measures the cycles of "non-REM sleep" and "REM sleep" and sounds an alarm at the most comfortable waking time. The alarm timing is detected wirelessly by a small, lightweight sensor worn on the wrist before going to sleep. It also boasts a high level of design, winning the 2007 Red Dot Award for Product Design, which is awarded for excellent product design. Furthermore, it was recognized as an outstanding work, winning the 2007 Accessory category of the "VOLVO Sports Design Award," which is presented to sports-related products with excellent innovation and design. Color: White Main Material: Plastic Display Format: Digital -About the Product- ・The main unit and sensor have had their batteries replaced with new ones, and their operation has been confirmed to be problem-free. ・One of the wristbands (Size: M) is unused. I will include the older ones as well, just in case. ・Instruction Manual (Japanese, English) →The Japanese instruction manual was found later (see photos). ・Dedicated Software This was obtained from the website at the time, so it is unknown if it can be installed on current PC environments. It will be included on an SD card. ・There are no smokers in the family. ・As this is a used item, please refrain from bidding if you are looking for a perfect condition.