nwm Open-Ear True Wireless Ear Speakers MBE001 Purchased last October, but I haven't used them much because I was using other earphones. ＜Product Description＞ 〇 Doesn't cover your ears, so you can talk while wearing them. 〇 Like a speaker, but it's an earphone 12mm diameter driver suitable for open-ear type. Adopts a carbon fiber diaphragm that delivers rich tones, achieving clear mid-high frequencies, contoured bass, and a premium sound with a sense of spaciousness. 〇 Equipped with sound leakage suppression PSZ technology Equipped with NTT's proprietary PSZ (Personalized Sound Zone) technology. Minimizes sound leakage, which was a weakness of open-ear earphones, allowing those around you to be comfortable. 〇 Recommended for phone calls and online meetings You can easily speak because you can hear your own voice, and it's also recommended for calls with a built-in microphone. The ear hook type has less pressure and a light fit, allowing you to wear it for long periods. *Maximum communication distance: Approximately 10m in a clear line of sight (Communication distance is an estimate. Communication distance may vary depending on the surrounding environment) Product Specifications [Size] Width 51.6 x Depth 52.4 x Height 13.2mm [Weight] Main unit 9.5g (per side) Carrying case approx. 70g [Material] Polypropylene, elastomer [Charging time] 2.5 hours [Usable time] 6 hours - Color: Black - Accessories: Charging case, USB cable (TypeC) - Design: Earphones with hooks