NTT Sonority Inc. (Headquarters: Shinjuku-ku, Tokyo; President and Representative Director: Koichi Takami; hereinafter referred to as "NTT Sonority") announced that its "Mimispi" series of open-ear earphones, which do not block the ears and are equipped with NTT's patented technology, will be available at special prices of up to 30% off. These earphones are part of "nwm (Noom)," the NTT group's first acoustic brand with the concept of "Co-being" rather than immersion. The special pricing will be offered during the "Mimispi SUMMER Campaign" held from 10:00 AM on July 7 (Tue.) at the nwm official store, and during the "Amazon Prime Day Early Access Sale" from 0:00 AM on July 7 (Tue.) to 11:59 PM on July 9 (Thu.), and the "Amazon Prime Day" from 0:00 AM on July 10 (Fri.) to 11:59 PM on July 13 (Mon.), both held on Amazon. As extreme heat becomes more severe, the deterioration of the ear canal environment due to prolonged use of sealed earphones and headphones is drawing attention as a new summer challenge. This summer, the "Mimispi" earphones, which do not block the ears, will be more accessible with special prices on both the official store and Amazon. We propose "Mimispi" as a new listening habit for this summer. ■Japan's Summer in the 40°C Era: nwm's "Mimispi" is Ideal for "Ear Warming" Countermeasures With the progression of global warming, summer temperatures are rising year by year. The Japan Meteorological Agency has even introduced "extreme heat day" as a new forecast term for days exceeding 40°C, highlighting the severity of the heat. Along with this, the risk of "ear warming" – where the ear canal becomes hot and humid due to prolonged use of sealed earphones and headphones – is also increasing with these climate changes. If "ear warming" progresses, it can lead to discomfort and itching, and if symptoms persist, it may even lead to "ear fungus" or otitis externa. A "Survey on Summer Earphone Usage and Ear Problems 2026" conducted by NTT Sonority in May revea