The shape of my ears is different on the left and right sides, so one side didn't fit. I think I used them for about 3 hours a few times during my commute. ・Photos 8 and 9: There are scratches on the case, visible at certain angles, possibly because I carried it in my bag for about a week. ・Photo 7: There are also scratches on the round black part of the earphones, visible at certain angles. ・Photo 4: There are traces of tape on the bottom of the paper case because I pulled the square paper case out of it. Since these items have been used, even if only for a short time, please refrain from purchasing if you are concerned. Open-ear fully wireless ear speakers nwm DOTS Brand: nwm Wearing style: Separate left and right, completely independent Earphone/Headphone type: Ear-hook Wireless/Wired connection: Wireless Earphone/Headphone features: Microphone, sound quality adjustment, waterproof, splash-proof, remote control High-frequency range (kHz): 20.0 kHz Wireless standard: Bluetooth Wireless features: Multi-pairing Bluetooth codecs: AAC, SBC IP standard (waterproof standard): IPX4 Drive system: Dynamic type Driver size (mm): 12.0 mm Charging time: 1.0 hour Weight (g): 16.0 g