Purchased on Mercari three months ago in almost new condition. Used indoors, so it's in beautiful condition with no noticeable scratches. No operational problems, and connectivity is good. (Connection confirmed with iPhone, Android, and PC) The sound is outstanding, even compared to the az100, in my personal opinion. The following is the product description at the time of purchase: Almost new condition. Ear tips unused. Cable, instruction manual, and box are included. It has only been used for playback confirmation after being replaced with a new one using the warranty, so it's almost new. The case is also very clean. I can include the warranty and receipt, but I think it will be out of warranty. *Due to the high price of the item, I have recorded everything from packaging to shipping via Pudo to prevent swapping. Fully wireless earphones Gemini II Matte Black Brand: DEVIALET Wearing style: Separate left and right, completely independent Earphone/Headphone type: Canal type Color: Black Wireless/Wired connection: Wireless Earphone/Headphone features: Noise canceling, Microphone, External sound capture, Sound quality adjustment, Waterproof, splash-proof, Remote control Wireless standard: Bluetooth Bluetooth codec: aptX IP standard (waterproof standard): IPX4 Drive system: Dynamic type Driver size (mm): 10.0 mm Charging terminal: Qi standard